I am having trouble with a drop down menu and iframe in ie7. It works great and looks fine in every other browser but can't get it to work in ie7. I have an iframe that is showing scrolling graphics and above it is the main menu for the site. For some reason the menu wants to go behind the iframe and everything else o the page. As far as I can tell it's not the iframe because it happens on other pages and goes behind everything on the page. I've tried changing the z-indexes and writing css specific or ie7 but have not been successful. Any help would be great. Thanks

The url for the site is:
http://mountcarmelcommunitychurch.org