Well, you're right. The submenu's don't flyout on mouseover in Internet Explorer.

I noticed you used Adobe GOLIVE. I don't know if there is a bug in GOLIVE or not, can't say. I do know that Internet Explorer (IE) and CSS don't always play well together.

I use Webstyle 4, which is a sister product of Menu Maker and am not having any problems with it. (I use Frontpage as the HTML editor)

The menus defintely work in Firefox as I navigated around your Website.

Sorry I couldn't be of more help, but can definetely confirm there is an issue with the menus in IE6.

Maybe Adobe Golive folks may know if there is an issue?