New NVIDIA nForce drivers have been released with build number 5.10. These are WHQL certified.

Installation Notes
Windows XP users must install Service Pack 1, at a minimum, prior to attempting to install this package. Failure to do so will result in the inability to support USB 2.0.
Audio drivers will not install on the following nForce2 products: Chaintech 7NJS. Please use the drivers that come with these products to enable audio functionality.
Installation of DirectX 9.0 or higher is required in order to use NVMixer.

Release Notes
WHQL certified kit
Unified drivers with support for nForce, nForce2, and nForce3 products, including support for dual-processor systems.
General compatibility fixes
Audio Driver Improvements:
-Addressed audio issues in numerous games and applications
Storage Driver Improvements:
-RAID Morphing
Improved RAID Interface
RAID spans both SATA and PATA devices
RAID 0, 1, and 0+1
Improved handling of various storage devices

Windows XP Driver Versions
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)

Download: NVIDIA nForce 5.10