Z-index issue with flash and my menu

I have a problem that I can’t figure out. I am working on a web site were the html menu was programed by another person. The web site http://dev-mactrailer-v2.virtualhorizons.com/index.aspx

There is a flash presentation I developed that I have added utilizing the swfobject.js, the flash piece was published as window transparent.

The issue is the html menu which is a combination of div tags, javascript and css has drop downs that do not show up. I have tried adjusting the z-index of all the elements thinking that was an issue, but I don’t know anymore.

I have tried removing the swfobject.js and just ran with straight flash html code, no differenance.

Any ideas?

I hope this is the correct forum for this question, if not maybe someone can move it for me.