Wife has a NEO2 Plat / Venice/ 6800gt combo.
I use these for her pc with WinXp
Nvidia Unified Drivers on hers, the 5.10's are the latest i believe.
I usually just install the whole package after a clean install of winxp, except for the audio driver cuz shes using an audigy 2.
Heres whats in the package.
Audio driver 4.42 (WHQL)
Audio utilities 4.44
Ethernet driver 4.42 (WHQL)
GART driver 4.36 (WHQL)
Memory controller driver 3.38 (WHQL)
SMBus driver 4.04 (WHQL)
Installer 4.46
IDE NVIDIA driver 4.46 (WHQL)