I have an old labtec webcam which is the only one of three webcams
which i have that my Gutsy Gibbon install would recognise even with
the help of the universal driverfrom the website i have entered
below.
It is worth a try though as this brilliant guy has produced this
driver which supports 235 webcams, so with a bit of luck yours
might be amongst them.

www.theinquirer.net/.../one-man-writes-
linux-drivers-for-235-usb-webcams