WMode Transparent not displaying in Windows/Firefox

Question

Hello, I'm using Wordpress and a Wordpress flash plugin
called Showtime Slideshow as the site's gallery. It works
perfectly in the standard wmode=window setting in
Firefox/Windows, but I have a dropdown menu that
overlaps with the Flash. I was able to figure out the wmode
needs to be opaque or transparent, but when I use those
settings, nothing is displayed at all. It works fine in
Windows/IE, Mac/IE and Mac/Firefox, so there is something
in the code that Windows/Firefox doesn't like in this code
(another Flash object from YouTube with wmode=transparent
displays correctly).
Here is the code that the plugin generates:
<!-- generated by showtime WP plugin -->
<script type='text/javascript'>
var flashvars = {
xml                : 'http://www.youtag.lu/youtagdesign/wp-content/plugins/showtime-slideshow/showtime/getxml.php?attr=id^433*source^medium*sourcehd^large*',
width                : '674',
height                : '448',
classid           : 'st_0',
rotationtime     : '5',
transition          : 'SlideRight',
transitiontime     : '1.5',
transitionease     : 'BackEaseOut',
autoplay          : '',
showcontrols     : 'on',
fullscreen          : 'on',
showtext          : '',
showalt               : 'on',
shuffle               : '',
scale               : 'noScale'              
var params = {};
params.allowFullScreen = 'true';
params.bgcolor = '#EDEAE6';         
params.quality = 'autohigh';         
params.wmode = 'transparent';
//params.base = 'dirname(__FILE__)';
//params.allowScriptAccess = 'local';
var attributes = {};
attributes.styleclass = 'showtime';
swfobject.embedSWF ('http://www.youtag.lu/youtagdesign/wp-content/plugins/showtime-slideshow/showtime/st15.swf', 'st_0', '674', '448', '10.0.0', 'http://www.youtag.lu/youtagdesign/wp-content/plugins/showtime-slideshow/showtime/swfobject/expressInstall.swf', flashvars, params, attributes);
</script>
[taken from the Showtime Slideshow demo page]
Based on that code, can anyone see anything that
would cause the whole slideshow to not display at all?    

Answer 1

Bump. Could anyone take a look at the code?