Radeon 3850 and adaptive AA

Any Radeon 3850 or 3870 users (since they're the same chip) get adaptive anti-aliasing (it smooths out alpha/transparent textures) to work with GW on Windows Xp?

I can't find it listed within their knowledgebase so I've opened up a support ticket with AMD/Ati, but they're retarded at best.

Kinda disappointing since even my old 7800GT was able to do transparency AA (nVIDIA's adaptive AA equivalent). I've tried Catalyst's 7.11-8.3 with no luck.

Come on, not one person uses a Radeon 38x0 series card?

I have a 3850 and AA doesn't seem to work that well in GW.