Haven't tested the rest yet, but as far as I can tell, wheel support doesn't seem to be working.
Win XP with a Logitech Dual optical wheelman mouse.
Incidentally, I also have a Logitech keyboard (forget which model) which has an additional wheel on the side which allows me to simulate a mouse wheel for like web browsers and whatnot. It doesn't seem to work either.
Just figured I'd let ya know