Thumbnail Gallery Problem

Hi guys, thanks a lot for the Thumbnail Gallery, It is a truly awesome tutorial.

Im just having web browser issues with the gallery: It works fine when I export in flash, but not in the browser. Sometimes some images do not load (specialy number 11) or the scroller doesnt work properly. Im using IE 6, Flash MX 2004 and Flash Player 8. I noticed Flash MX 2004 only exports .swf up to Flash 7

Oh heres the website where you can see the problem:

I havent changed any of the code for the images gallery.