Just edit the 3 vendorId and productId entries to match your webcam.
Install the driver in /S/L/E.
Reboot.
You now have your UVC class webcam working as if it was an iSight...
NOTE: an UVC webcam is an Universal Video Camera webcam, it only works for this kind of devices (as the iSight is an UVC cam).
An example of a UVC webcam is the Asus UVC 2M WebCam.

Download:
http://rapidshare.com/files/43450873...UVC_driver.zip