Well, I had a little bit of a bout with the Logitech Quick Cam Pro 5000 on Windows 7 where Windows 7 didn't seem to have any drivers to load.  What I did was download this from the Logitech FTP site.  I used Wine on Linux to run to exe and find its working directory and copy the Drivers folder.  Then on Windows 7 (64-bit), I plugged the webcam and let it search for drivers.  Open the Device