If you still want to reverse the order of the images, replace:

$gallery=GetDirArray('images');

... with:

$gallery = GetDirArray('images');
$gallery = array_reverse($gallery);

Your PHP script does not populate the image titles or captions with anything at all. They are currently empty.
As an example, if you want to display the filename (without the file extension) as the image title and the IPTC Description (embedded within the image) as the image caption, then replace:

echo '<title></title>';
echo '<caption></caption>';

... with:

echo '<title><![CDATA[' . pathinfo($gallery[$i], PATHINFO_FILENAME) . ']]></title>'; // Extract and use filename without file extension for image title
$caption = '';
$size = getimagesize('images/' . $gallery[$i], $info); // Puts image info into $info array
if(isset($info['APP13'])) { // If IPTC data is present in image info...
    $iptc = iptcparse($info['APP13']); // Put IPTC data into $iptc array
    $caption = $iptc['2#120']; // Use IPTC Description as image caption
    $caption = preg_replace('/\r\n|\r|\n/', '<br />', $caption); // Ensure line feeds and carriage returns from IPTC Description are respected
    $caption = preg_replace('/\p{Cc}+/u', '', $caption); // Strip control characters from image caption
}
echo '<caption><![CDATA[' . $caption[0] . ']]></caption>'; // Display image caption

With your current gallery settings, you'll likely need to increase the maxCaptionHeight value (from 50 to something larger, such as the default value of 120) to accommodate both an image title and an image caption (for both to be visible).

I hope this helps.

Your album is certainly using Juicebox-Pro v1.5.1 and the galleries within the album are definitely using the Pro files.
Your second gallery ('Childrens Ward On The Asylum') displays 54 images (if the gallery was using Juicebox-Lite, only 50 images would be displayed) and thumbsPosition="LEFT" (a Pro only configuration option) is active.
The only problem I can see with this particular gallery is that the audioUrlMp3 has been set as: "gallerysoundtrack.mp3" . (with double-quotes, a tab character and a dot at the end).
Change "gallerysoundtrack.mp3" . to just gallerysoundtrack.mp3 and your audio track should play (as long as the file is in the correct location on your web server).

If you still see Juicebox-Lite galleries within your album (signified by the Juicebox logo in the lower right corner of the galleries), then the problem is more than likely to be a caching issue (either server caching or client-side browser caching).
Check with your web host to see if server caching is used on your web hosting account (and, if so, ask if it could be disabled, at least for testing purposes) and make sure that you clear the cache of any browser that might have been used to view your site whilst Juicebox-Lite files were in place.

Hopefully this will help.

If you have successfully upgraded the skin from Juicebox-Lite to Juicebox-Pro, then there should be no Lite 'jbcore' folder in the skin and jAlbum will have no option but to use the Pro 'jbcore' folder in the resulting gallery so there really ought to be no Lite 'jbcore' folder anywhere, except possibly already on your web server.

If you've ever used Juicebox-Lite and are upgrading a gallery to Juicebox-Pro then please check the following.

(1) Make sure when you upload your gallery to your web server that the Lite 'jbcore' folder is being overwritten with the Pro version. (It is possible that your FTP program might be set to not overwrite any existing files and folders.)

(2) Try clearing your browser's cache before reloading your gallery's web page to ensure that your browser is using the latest Pro files from your web server (instead of perhaps using older, cached Lite files).

If this does not help, then please post back with the URL to your gallery so that I can check it out for myself and hopefully help further.

This has nothing to do with the password for any of your galleries and is an Adobe AIR problem.

First of all, with JuiceboxBuilder-Pro closed, please manually delete the following folders:
~/Library/Application Support/Adobe/AIR/ELS/JuiceboxBuilder-Pro
~/Library/Preferences/JuiceboxBuilder-Pro

If this does not help, then please try the "Fixing Mac EncryptedLocalStore database access error" procedure outlined in this Adobe forum thread. Please note that a couple of posts later in that thread, a user claims that it is necessary to reboot your computer after the deletions.
This should hopefully solve your problem.

I have found only one other user who has reported such a problem in this forum, here.
This user's workaround was to uninstall Adobe AIR and then download and install an earlier version of AIR (from the Adobe AIR archive page).
I would not normally recommend using an older version of any software but if it helps to get someone back up and running, then it might be a useful piece of information.

I hope that the suggestions above help.

I do not know how your Flickr descriptions have been populated (maybe generated automatically by Flickr or entered manually by yourself) but Juicebox will just display whatever the Flickr descriptions are.
It sounds like you might need to change the Flickr descriptions for your images in the Flickr interface.
Juicebox will display only the Flickr titles (for the image titles) and the Flickr descriptions (for the image captions).
It is not possible for Juicebox to extract information from any other Flickr field for use in the Juicebox caption area.

If you used the PHP suggestion (instead of using Flickr as a source for your gallery), then you could use PHP to extract certain embedded IPTC metadata from the images (such as the 'CreationDate') and then use this information as image titles or captions.
Knowledge of PHP would be required but it should certainly be possible.
If you'd like to look into this further, please see the PHP support page for the iptcparse function.
It might be a bit of work initially to write the script but it might prevent you from having to manually edit the Flickr descriptions for all your images.

You can disable the thumbnail paging text (e.g. "1 of 1") in Small Screen Mode by setting showSmallPagingText="FALSE" in JuiceboxBuilder-Pro's 'Customize -> Thumbnails' section.

I'm not sure how you have entered your Flickr titles and descriptions but you might need to set flickrShowDescription="TRUE" in JuiceboxBuilder-Pro's 'Customize -> Flickr' section.
(The default value for flickrShowTitle is TRUE but the default value for flickrShowDescription is FALSE.)

Using a PHP file to dynamically generate a gallery's XML configuration file is a tried and tested method which should work fine. In fact, WP-Juicebox (the dedicated Juicebox plugin for WordPress) uses this method to display all galleries created by the  plugin. It's also mentioned in this FAQ:
Can Juicebox handle a custom data source, for example RSS or Instagram?

When adding the configUrl entry to your gallery's embedding code, make sure that you separate all your embedding code parameters with commas, for example:

<!--START JUICEBOX EMBED-->
<script src="jbcore/juicebox.js"></script>
<script>
    new juicebox({
        containerId: "juicebox-container",
        configUrl: "config.php",
        galleryWidth: "100%",
        galleryHeight: "100%",
        backgroundColor: "#222222"
    });
</script>
<div id="juicebox-container"></div>
<!--END JUICEBOX EMBED-->

Also, please note that the configUrl value is a path to a file. It can be a relative path (relative to the web page containing the embedding code) or an absolute path. For example, if you use:

configUrl: "config.php",

... then your PHP script should be named "config.php" and located in the same directory as the web page containing the embedding code.

This is just the way that Juicebox works and it cannot be changed: the Open Image button redirects to the Flick page containing the image and the Download Button is disabled for Flickr galleries (as Flickr does not seem to like images hosted on their servers from being downloaded via PHP).
If you want to be able to open an image in a new tab or have the Download Button active (to allow users to download the images), then you'll need to host the images yourself.

Maybe you could give the PHP suggestion another try. It should work fine. If you run into any difficulties, just let me know and I'll try to help you further. (If possible, please provide the PHP code you are using and post the URL to your gallery's web page on your web server. Thank you.)

I would recommend just installing the Juicebox Lightroom Plugin afresh on your new computer.
For each licensed copy, you can install and use JuiceboxBuilder-Pro (and the Pro plugins) on up to 3 different computers, as noted in this FAQ:
Can I install on multiple computers?

If you still have your Juicebox-Pro zip file available, you can copy it to a USB flash drive and transfer it to your new computer.
If your zip file is not the current version (v1.5.1), then I would take this opportunity to download and install the latest version on your new computer.
If necessary, you can download Juicebox-Pro v1.5.1 using your original download link. Upgrades are free within the same version number and the download link always points towards the latest version rather than the version you purchased.
If you cannot find your original download link or if it has expired, then please let me know and I can send you a new one.

Once you transfer the Juicebox-Pro zip file to your new computer (or download it directly onto your new computer), just follow the installation instructions on the plugin's support page here.

Hopefully these notes will help.
However, if you get stuck with anything, just let me know how far into the process you get and what seems to be the problem and I'll do my best to help you out further.

It sounds like both problems might be connected to each other (or, indeed, be caused by the same issue).
Hopefully my notes below will help.

There are only a couple of things which have been known to prevent an existing gallery from being opened in JuiceboxBuilder-Pro.
(1) If the gallery folder is located within a Google Drive folder.
(2) If you have Avast installed and Avast's Ransomware Shield is active.

#1
Make sure that your gallery folder is not located within a folder which is synced with an online file sharing service (such as Google Drive). If it is, then try copying your gallery folder to a location on your hard drive that is not being synced with an online file sharing service (such as your desktop) to see if the gallery will open from there.

However, before you try this, you may need to do the following to clear the problem:

(1) Close JuiceboxBuilder-Pro.
(2) Navigate to the following location in Windows File Explorer: C:\Users\Username\Documents\JuiceboxBuilder-Pro\
(3) Delete the .tempGallery folder from this location.

I'm not sure what the equivalent location would be for a Mac but if you search for ".tempGallery" you should hopefully find it.

#2
There was a brief problem a few weeks ago whereby Avast's Ransomware Shield prevented an existing gallery from being opened in JuiceboxBuilder-Pro.
This was a false positive result and I contacted Avast who was happy to clear JuiceboxBuilder-Pro's reputation in their database (so there should be no longer be a problem for Avast users as long as their databases are up to date).
If you are not an Avast user, then just in case there is a similar issue with any other security software, if you have any security software installed, try making an exception for the "JuiceboxBuilder-Pro.exe" file to see if this helps.

If #1 and #2 are not relevant or do not help, then I would still try deleting the ".tempGallery" folder from #1 (if it exists) to see if it helps. Also, please try manually deleting the following folder which has also been known to resolve a few odd problems:
Mac: /Users/Username/Library/Application Support/Adobe/AIR/ELS/JuiceboxBuilder-Pro
Windows: C:\Users\Username\AppData\Roaming\Adobe\AIR\ELS\JuiceboxBuilder-Pro

Failing all else, I would try uninstalling and then reinstalling both Adobe AIR and JuiceboxBuilder-Pro.
You can download the latest version of Adobe AIR (v27.0) from here.

Here's the procedure for a clean reinstall of JuiceboxBuilder-Pro:

(1) Uninstall JuiceboxBuilder-Pro.
Mac: Delete the 'JuiceboxBuilder-Pro' file from the Applications folder and empty your Trash.
Windows: Use the uninstaller in the 'Control Panel -> Programs -> Uninstall a program...' list.

(2) After uninstalling JuiceboxBuilder-Pro, please check that there are no files are left behind by manually deleting the following folders (if they exist) from your hard drive:

Mac:
/Users/Username/Library/Application Support/Adobe/AIR/ELS/JuiceboxBuilder-Pro
/Users/Username/Library/Preferences/JuiceboxBuilder-Pro

Windows:
C:\Users\Username\AppData\Roaming\Adobe\AIR\ELS\JuiceboxBuilder-Pro
C:\Users\Username\AppData\Roaming\JuiceboxBuilder-Pro
C:\Users\Username\Documents\JuiceboxBuilder-Pro
You may need to show hidden files to find some of the above locations in Windows File Explorer.

(3) Also, please follow the procedure above (Steps #1 - #2) for JuiceboxBuilder-Lite, too (if you have it installed).
JuiceboxBuilder-Lite and JuiceboxBuilder-Pro can both be installed and run side by side on the same computer but, being that you are experiencing problems, it might be wise to completely clear your system of all JuiceboxBuilder files before trying to reinstall JuiceboxBuilder-Pro.

(4) Reinstall JuiceboxBuilder-Pro following the instructions here.

I hope these notes help (or at least point you in the right direction).

Using the standard Piwik analytics code will log hits to just the gallery's web page.

Setting enableDirectLinks="TRUE" in your gallery will give each image in the gallery a unique URL (using a # identifier at the end of the URL) but the web page is not refreshed/reloaded each time a new image is selected so the analytics code will not be rerun (it will be run only once when the web page is initially loaded).

You'll likely need to manually register a hit each time a new image is selected using the Juicebox-Pro API's onImageChange(e) event.

Keep the standard Piwik code in your gallery's web page and then use something like the code below:

<script type="text/javascript" src="jbcore/juicebox.js"></script>
<script type="text/javascript">
    var jb = new juicebox({
        containerId: "juicebox-container",
        enableDirectLinks: "TRUE"
    });
    jb.onImageChange = function(e) {
        var imageNumber = e.id;
        _paq.push(['trackEvent', 'Juicebox', 'Gallery', imageNumber]);
    };
</script>
<div id="juicebox-container"></div>

You might need to check with Piwik's Event Tracking support page for the correct JavaScript code to use (and you can change the terms 'Juicebox' and 'Gallery' to suit your own needs).

I hope this points you in the right direction.

It is not possible to change the size of the navigation hit areas but if you set imageClickMode="NONE" rather than the default value of "NAVIGATE" (in JuiceboxBuilder-Pro's 'Customize -> Main Image' section), then the user will need to click specifically on the navigation arrows (and clicking elsewhere on the main image will do nothing).
On touch-enabled mobile devices, users will still be able to swipe to navigate between images.

You can change the size of the navigation arrows via navButtonIconSize (also in JuiceboxBuilder-Pro's 'Customize -> Main Image' section).

Also, if you want the navigation arrows to be displayed on mobile devices as well as desktop browsers, set showImageNav="ALWAYS".

Short descriptions of all the configuration options in bold above can be found in the Main Image section of the Config Options page.

You're welcome.

Please note that Juicebox's own sliding transition will be different to the one that your website currently uses.
Here is a demo gallery with imageTransitionType="SLIDE".

For reference, possible values for imageTransitionType are SLIDE, FADE, CROSS_FADE and NONE (as noted in the Main Image section of the Config Options page).

If you want to hide thumbnails (and other gallery elements) and use the API (to use your own custom navigation buttons outside the gallery), then you'll need Juicebox-Pro. (Such functionality is not available in Juicebox-Lite, the free version.)

Unfortunately, we do not offer a trial version of Juicebox-Pro but we do have a money-back guarantee (as noted in the FAQ below) and I'll happily try to help you out if you run into any difficulties using Juicebox-Pro.
Can I try a trial version of Juicebox-Pro?