Found this on a web site, might work.
VF0050 Vista driver ! It works, July 9, 2007
I was also about to give up trying to find a Vista driver for this great webcam, when I finally tried out the default Xp driver from the creative website.
After installing the driver, the last screen got stuck. I then logged out, and after logon, plugged the Webcam just to check, and ... it detected it correctly!
Works with MSN and Skype as it did running Xp !