computeruler, please ignore squall, he's actually making no sense at all to me.
The best driver is usually determined by trial and error, give some of them a shot and see which drivers perform best.
I would start with
these if you must try modified drivers.
Be aware however that no matter what drivers you use, that card will still suck - sorry, but it's integrated graphics, there are no miracle drivers or programs out there to increase your graphics performance drastically.