taken from http://digg.com/microsoft/How_To_Vista_and..._Driver_Support

and http://cuddlyogre.googlepages.com/nforce2.html

WARNING! : You may have to reactivate after you do this. I had to.
How to install chipset drivers for nforce2 in Vista.
1. Download the nforce2 drivers for XP from here.
2. Right click the driver exe and go to the compatibility tab. Check the box that says "Run this program in compatibility mode for" and make sure you select Windows XP (Service Pack 2).
3. Run the exe as normal and after a couple restarts your nforce2 based computer will have full driver support.