Preloader not showing in IE

I’ve gone through the preloader tuts on Kirupa and they’re working great in Netscape/Mozilla but the preloaders aren’t showing in Internet Explorer. Has anyone else had this problem? Any ideas how to fix it? I took the code directly off the Preloader Tutorial.

Here’s the page: http://www.sweeperhead.com/dojo/videos.htm

Thanks,
Sara C.