If you added the images using the 'Add Media' button whilst creating a new post, the images are automatically attached to that particular post.

If you add images to the Media Library by clicking the 'Add New' button on the Media Library settings page, then you will have the option to attach each image to a post by clicking on the word 'Attach' in the 'Attached to' column on the Media Library settings page.

You could use imageScaleMode="FILL" to completely fill the image area with the main image (though cropping may occur on large images). However, the thumbnails are of fixed dimensions and are centered within the gallery and the gallery is embedded in a container with a fixed width on your WordPress page. If the container was slightly narrower that it currently is, there would be less room to the left and right of the thumbnails but the container size is set by your WordPress theme. You could check your WordPress theme settings to see if you could decrease the post container width.

Since you have set thumbNavPosition="BOTTOM", Juicebox is reserving space for the thumbnail navigation buttons below the thumbnails.
If the gallery was embedded in a container which did not have a fixed width and the user decreased the width of the browser window, the number of thumbnails per page would decrease and the thumbnail navigation buttons would appear in this space to allow the user to navigate through the thumbnail pages.
If you find a way to change your post container's width in your WordPress theme settings, you might like to try increasing the post container's width slightly and reverting to setting thumbNavPosition="CENTER".

@rocksta669

Make sure that you are using the latest version of WP-Juicebox (v1.2.0) and check that the numeric NextGEN Gallery Id (taken from the 'Dashboard -> Gallery -> Manage Gallery' page) matches the 'NextGEN Gallery Id' that you enter into the Juicebox settings window.
If using WP-Juicebox v1.1.1, after creating your NextGEN Gallery, you will need to 'Edit' the post containing the gallery and 'Update' the post or go to the 'WP-Juicebox -> Manage Galleries' page and 'Edit' the gallery itself and click 'Save' (without changing anything) in order to rebuild the gallery's XML file with the new image data.
(It is not necessary to do this in the latest version of WP-Juicebox v1.2.0, though you may need to clear your browser's cache before reloading the gallery.)
If you continue to experience difficulties, please post the URL to your web page so that I can take a look.

Use a background color with an opacity value (the 4th rgba parameter) to 0.
If using JuiceboxBuilder-Lite to create or edit your gallery, just set the 'Background Color Opacity' to 0 in the 'Customize' section.
Your embedding code will look something like this:

<!--START JUICEBOX EMBED-->
<script src="jbcore/juicebox.js"></script>
<script>
new juicebox({
containerId : "juicebox-container",
galleryWidth: "100%",
galleryHeight: "100%",
backgroundColor: "rgba(34,34,34,0)"
});
</script>
<div id="juicebox-container"></div>
<!--END JUICEBOX EMBED-->

First of all, please check that your web server meets all the requirements for WP-Juicebox v1.2.0 and make sure that you are logged in as an Administrator.

Try adding a gallery by either:
(1) clicking the 'Add Juicebox Gallery' text button (in 'HTML' mode), or...
(2) clicking the Juicebox icon button (in 'Visual' mode)
Do you get the same error message when trying both of the above methods?

Another user recently experienced a similar problem when using the BulletProof Security plugin.
If you use this plugin, please see this forum thread: http://juicebox.net/forum/viewtopic.php?id=369
You may need to add the following code to your root .htaccess file in order to configure BulletProof Security to work with WP-Juicebox.

# Juicebox skip/bypass rule
RewriteCond %{REQUEST_URI} ^/blog/wp-content/plugins/wp-juicebox/ [NC]
RewriteRule . - [S=13]

If you do not use the BulletProof Security plugin, then there may be a conflict with a different plugin.
Try temporarily deactivating all your plugins and reactive them one-by-one (checking to see if you can successfully add a Juicebox gallery after reactivating each one) until you find the conflict.

The versions of SimpleViewer used by the two plugins differ greatly in format.
'Airtight SimpleViewer' uses SimpleViewer v1.8.5 whereas 'TTG SimpleViewer' uses SimpleViewer v2.3.0.
SimpleViewer was re-written from the ground-up for v2.
SimpleViewer v1.8.5 embeds a single SWF file in a web page whereas SimpleViewer v2.3.0 uses a collection of CSS, HTML JavaScript, SWF and image files (in the 'svcore' folder) in order to support Universal Playback.
Also, the tag and attribute names within the gallery XML files changed between v1 and v2.

In order to convert a SimpleViewer v1.8.5 gallery to a Juicebox v1.2.0 gallery, you will first have to upgrade the SimpleViewer gallery to the current format by opening it in svBuilder and re-saving it on the application's 'Publish' tab.
You should then be able to convert the gallery to a Juicebox gallery using JuiceboxBuilder.

Try using the current SimpleViewer plugin for Lightroom, 'TTG SimpleViewer', which can be downloaded from this web page.
The version which comes bundled with Lightroom (labelled 'Airtight SimpleViewer') uses an older version of SimpleViewer).

The audio functionality is part of each individual gallery and the jAlbum skin links together multiple galleries in an album.
There is no way to use the audio functionality of a single Juicebox gallery across multiple web pages (including other Juicebox galleries).
What you would need to do is embed a third-party audio player on your album's 'index.html' page.
If you wish to do so, try a web search with terms such as 'JavaScript MP3 Player' to find a suitable product.

Make sure that you have JavaScript enabled in your browser.
Perhaps this FAQ will help: When I view my gallery, I see a blank area. Why?

Juicebox is fully compatible with IE8.

That is correct. You do not need to supply an OGG file for IE. IE uses the MP3 track (as does Chrome and Safari). However, Firefox and Opera require an OGG file.

Yes. It is read-only, just like viewing any other web page in a browser.

If you have created a multi-gallery album with jAlbum, then you can embed individual galleries from the album using the baseUrl method of embedding as documented here. Just be sure to point to the 'juicebox.js' file in your album's 'res/juicebox/jbcore/' folder and make sure the baseUrl points towards the correct folder within the album's output directory.

Are you perhaps viewing your gallery on your mobile device over a 3G connection?
If so, please see this FAQ: Why can't I view my gallery on a 3G mobile connection?
I have just viewed your new Juicebox-Pro v1.2.0 gallery and the 'Expand Button' works fine on my iPod Touch over a wi-fi connection (just like you Splash Page worked fine previously).

Only Pro Options should be entered into the ProOptions text area. Do not enter any of the Lite Options listed here.

The Audio Button displays when I view your gallery as the last button on the Button Bar.
If you do not see this, try clearing your browser's cache before reloading the gallery.

Your MP3 audio track plays fine in Internet Explorer. However, in order to have the audio track play in all browsers, you must also provide the it in OGG format and point towards it using the audioUrlOgg configuration option (as certain browsers have no native support for MP3 files).
Please see the Adding Audio section for details.

I just opened the URL to your gallery's 'config.xml' file in the address bar of my browser.

Please see the 2) Using an iframe section of the Juicebox Embedding Guide for details.

The URL you quoted is a single gallery (rather than an album of several galleries linked together by the navigation tree).
Your galleries will resemble this when you click the Splash Page for each individual gallery (though you have currently set autoPlayOnLoad which will initially bypass the thumbnail page).
If you would like to create only a single gallery (rather than an album of several galleries) in jAlbum, make sure that all the images you wish to include in your gallery are in the root of your input folder and go to 'Album -> Settings -> Advanced -> General' (from the drop down menu at the top) and deselect the 'Process subdirectories' checkbox.

This sounds like you browser may be hanging onto and using an older version of your gallery's XML file.
Try clearing your browser's cache before reloading the gallery to ensure that the browser fetches the latest version of your gallery's XML file from the web server.

Thank you for providing the URLs to your album and web page.
Your gallery XML files each have two entries for the galleryTitle.
Perhaps you entered one as a Pro Option? (The Juicebox Skin enters a galleryTitle automatically.)
Remove one galleryTitle entry from each XML file and the galleries should function OK.