on your demo site , it seems you load library several times, not sure if it is causing a conflict
1.
<link rel=”stylesheet” href=”/ja_teline_ii//modules/mod_ja_catslwi/mod_ja_catslwi/ja_catslwi.css” type=”text/css” />
** double // in the link above
2. declared twice maybe not the same version
<script type=”text/javascript” src=”/ja_teline_ii/plugins/content/avreloaded/swfobject.js”></script>
then several lines below:
<script language=”javascript” type=”text/javascript” src=”http://template15.joomlart.com/ja_teline_ii/templates/ja_teline_ii/highslide/swfobject.js”></script>