I installed the 32bit, as it is my OS.
The executable name is "258.96_desktop_winxp_32bit_international_whql.exe".
I had to change the driver because I was having 20fps in Resident Evil 5. Now it runs normally at 60fps.
But I don't know if that makes any difference because the game uses OpenGL, not DirectX.
Either way, I imagine that the fact that it runs normally might mean that the driver is not buggy.