HTML and Flash Problem

Hi, OK, basically, I have a “News” section of a website and, so that someone else can update it properly without my help (they don’t know anything about Flash) I have created a Flash movie with just the background and then used HTML and CSS to place an IFRAME “on top” of the Flash movie.

It all works fine in Internet Explorer but, predictably, it completely messes up in Mozilla etc. I did have an XML system set up at one point but the person who is going to be updating this knows Dreamweaver and that’s it! Plus, image (IMG) tags wouldn’t display images for me when it was brought into Flash.

You can see the page I’m talking about by going to the “News” page of www.betaband.com

Many thanks in advance,
Dave