I'm afraid you just have to wait a while for a driver as the spca driver didn't work.
http://www.qbik.ch/usb/devices/showdev.php?id=2303

EDIT: Oops, didn't look at the timestamp on that page.
Well, even if the timestamp is aged, your camera doesn't seem to be supported yet.
Hopefully someone has a solution but I failed to google up one.