ATI Xpress 1250 + 8.42 + Gutsy = Compiz not working

[leduc]

I have an ATI integrated chipset Xpress 1250.
I have downloaded the newest ATI driver fglrx 8.42 but
compiz and the Xvideo don't work. For the Xvideo part, ATI doesn't support this one for the Avivo chipset for the moment but when ?

Two problems for me:
- HD H264 decompression
- Compiz.

There is any date from ATI for the Xvideo support for the Xpress 1250 chipset ?
When the Hardware H264 decompression will be available for the Avivo chipset.

Please Help me