Make Menu IE7 Compatible

I need to adjust the HTML and CSS of a menu to display properly in IE7 and older. The menu displays perfectly in IE8 and newer as well as all other browsers. I am hoping someone out there can find the problem without needing to reconstruct the menu entirely. Attached is a screen shot of the page displayed both correctly and incorrectly. A test page of the menu can be viewed here: [login to view URL] A useful tool that allows you to view pages in older Internet Explorer versions can be found here: [login to view URL] I can provide FTP access for you to make the changes directly or I can implement whatever changes are necessary. My budget is $50 or less. Under $40 would be nice.