flashvars.galleryURL = "galleries/websites/gallery.xml";
flashvars.galleryURL = "galleries/design/gallery.xml";
flashvars.galleryURL = "galleries/photography/gallery.xml";
flashvars.galleryURL is used in SimpleViewer v2 and your gallery is version 1.8.5 so since the galleries is not getting those XMLs they are finding the gallery.xml in your http://www.vsncom.com/visiontest/ folder. You either need to upgrade to SimpleViewer 2 or change flashvars.galleryURL to flashvars.xmlDataPath.
Also in your design page your are using two embed methods, you can't use both SWFObject and the basic embed at the same time.
replace the object line:
<object style="visibility: visible;" id="galleries" data="galleries/design/viewer.swf" type="application/x-shockwave-flash" height="600" width="800"><param value="222222" name="bgcolor"><param value="true" name="allowfullscreen"><param value="always" name="allowscriptaccess"><param value="galleryURL=galleries/design/gallery.xml" name="flashvars"></object><a style="left: 1132px ! important; top: 183px ! important;" title="Click here to block this object with Adblock Plus" class="ebpeyjtlijkvmlmsjjxy xtfidhgursmxrtskcbfw" href="http://www.vsncom.com/visiontest/galleries/design/viewer.swf"></a><a class="ebpeyjtlijkvmlmsjjxy" href="http://www.vsncom.com/visiontest/galleries/design/viewer.swf"></a>
With:
<div id="galleries">SimpleViewer requires JavaScript and the Flash Player. <a href="http://get.adobe.com/flashplayer/">Get Flash</a></div>
Mike Richards
SimpleViewer Support Team.