Vertical Menu :hover attribute need ie fix

http://www.thelisthq.net/datetest.php

If you view the page in firefox, chrome, or ie 8 with compatibility mode off the vertical menu works fine. If you view it in earlier versions of ie it breaks. I can't think of how to fix this, I tried different doctypes, and many little tweaks but cant seems to get it to work properly. Anyone know of a fix, or have any insight?

re: Vertical Menu :hover attribute need ie fix

Found a fix. The problem was I was trying to use 'Direction: rtl;' on the <ul> tag, but a much simpler way is to just float the <li>'s right. Sorry that this question is going to be impossible for anyone to follow.