AOL's default browser is IE7. But Steve is right...AOL is so screwy that you can't be concerned with trying to fix anything that looks wonky there. Since they use IE7, if it works on IE7 outside of AOL, it will work inside of AOL.

Most browser issues inside AOL consist of (false) script error messages, pages not loading, and other weirdness...but not so much with how the page itself resolves.