Hi, I just recently reformat and install new windows xp for my friend's laptop and the only problem I can't seem to correct is his audio driver...

SigmaTel STAC9756/57 @ Intel 82801CAM ICH3-M - AC'97 Audio Controller [B-1] I've been searching it through driverguide, official website and mostly google but still can't find nothing... I'd manage to download SigmaTel STAC9750 9757 9758 from driverguide though none of them work,... I am out of reach unless you guy help me out and find that one headache driver for me... many many thank in adv

No not driver guide or google. You need to go to the laptop manufacture support page (Always)