I am using the AIW Radeon. All I did was download the beta drivers off of rage3d.
http://www.rage3d.com/files/drivers/radeonbeta.shtml#7153
Go to the bottom of the page and download the 5.0.3210 drivers. When you install, XP says they are not compatible, but do it anyway. This is the only way I could get my TV and DVD to work. Hope this helps. RC1 already has DX8.1 installed.