32Bit:
http://www.nvidia.com/object/winvista_x86_158.42.html

64Bit:
http://www.nvidia.com/object/winvista_x64_158.42.html

ForceWare Release 158
Version: 158.42
Release Date: May 14, 2007
Beta Driver

Direct links:

32 Bit:

http://us.download.nvidia.com/Windows/158....bit_english.exe

64 Bit:

http://us.download.nvidia.com/Windows/158....bit_english.exe