The embedding code provided on the 'Publish' tab of JuiceboxBuilder-Lite works fine when following the embedding instructions here.

www.xtreme-remodeling.com is a subdomain of xtreme-remodeling.com and all your gallery files must be on the same domain or subdomain due to the JavaScript same origin policy. Please see this web page for further details.

Your gallery currently uses the following code:

<script src="http://www.xtreme-remodeling.com/dream-deck-gallery/jbcore/juicebox.js"></script>

... so the gallery will display only when you access it using http://www.xtreme-remodeling.com/dream-decks.htm (and not http://xtreme-remodeling.com/dream-decks.htm).

Use relative paths within your embedding code and your gallery should display at both www.xtreme-remodeling.com and xtreme-remodeling.com

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

If your gallery's XML file is named 'config.xml' (which it is by default when creating a gallery with JuiceboxBuilder-Lite) and is located in the same directory as the HTML page continaing the embedding code, then there is no need to use the configUrl configuration option. (You will need to specify a configUrl only if you rename or move your gallery's XML file.

EDIT:
OK... FIGURED IT OUT... RENAMED THE XML TO THE NAME OF THE GALLERY... WORKING NOW

When I replaced my code to follow your recommendations above, it worked fine (for the decks example)...

So, I went ahead and created a html page for the "bath-gallery" as I did for decks before... this time named "xtreme-baths.htm"...

... and the gallery folder I created and uploaded is named "bath-gallery". 

Here is the code...

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

...but I'm getting the xml error again. Confused, as I believe it mimics the decks gallery.

FYI, inside of the folder the default xml is titled "config.xml"  (for both bath and decks)...  yet your code inserts the gallery name... which is what I did for baths...  and don't understand why the new gallery is not displaying...  :(

Am I missing something?

Thanks for a great program.  I converted the config file to a php file, so I could easily pass variables to it.  I stumbled a couple of times, but thought I'd post my code here, so an arm chair coder like myself may be spared a few minutes.  I'm sure there's probably an easier way to do this, but I'm self-taught, and this is what I came up with. 

To convert the config file to php, replace the existing header line with the following, and change the extension to php:

<?
header("Content-Type: application/xhtml xml; charset=UTF-8");
?>

To pass a variable to the php file I found I needed to use the full URL.  A relative path doesn't work on my server, or perhaps any server.  But you may run into a problem (as I did) with the error "Juicebox Error: Config XML file not found" if your site is accessed both from www.mysite.com and just mysite.com.  I wrote the following little workaround for that, so the full URL path would be compatible regardless of how the site is accessed:

This code detects if your guest is using "www" or not.

<?
$isWWW = substr($_SERVER['SERVER_NAME'], 0, 3); //Is visitor coming in on "www?"  
if ($isWWW == www)  
    {
        $preURL = "www.";
    }
    else
    {
    $preURL = "";    
    }
?>

Then to create the actual link, just modify your Juicebox settings like this:

configUrl: "http://<?=$preURL?>mysite.com/path/to/config.php?var1=<?=$var1?>&var2=<?=$var2?>"

This worked for me, but I'd love to see a real coder's hand on this.

@Michal

This is only because your page uses the XHTML 1.0 Transitional Doctype Declaration.
If your page uses the HTML5 Doctype Declaration (like the sample 'index.html' page in the 'web' folder), then you would not get this error message.

The error message refers to a generic 'configuration XML file' rather than a specific file named 'config.xml'.

Your page loads the 'juicebox.js' file twice (from two different locations):

<script type="text/javascript" src="./nieswiateczne/jbcore/juicebox.js"></script>

<script src="swiateczne/jbcore/juicebox.js"></script>

Try removing one of them to see if this makes a difference.
Also, it should not make a difference but try renaming your XML files to the default 'config.xml' and then remove the configUrl option from your embedding code.

On this web page: http://www.irmucha.pl/nieswiateczne.html
... it looks like the initial gallery is being displayed by the following code:

$(document).ready(function () {
    doLayout();
    $(window).bind('resize', doLayout);
    new juicebox({
        containerid : 'juicebox-container'
    });
});

... and this instance of Juicebox does not have a valid 'config.xml' file in the correct location.
Try adding the baseURL configuration option (from the embedding code further down your page) to the code above, i.e.:

$(document).ready(function () {
    doLayout();
    $(window).bind('resize', doLayout);
    new juicebox({
        containerid : 'juicebox-container',
        baseUrl : 'nieswiateczne/'
    });
});

I expect that you may not need both instances of embedding code on your page.
Once you have added the baseURL configuration option to the first instance (at the top of the page), try removing the second instance (at the bottom of the page).