ATI has released its Vista Build 5270 (December CTP) beta driver on http://www.ATI.com
The ATI Vista Build 5270 beta driver adds support for the following products:
* Radeon X1900 Series
* Radeon X1800 Series
* Radeon X1600 Series
* Radeon X1300 Series
* Mobility Radeon X1800 Series
* Mobility Radeon X1600 Series
* Mobility Radeon X1400 Series
* Mobility Radeon X1300 Series
The ATI Vista Build 5270 beta driver also adds Catalyst Control Center support for Windows Vista (with limited functionality - additional CCC features will become available in future ATI Vista beta drivers).