Your gspca module is not loaded, try to load it by:
(I have no idea if you should do that, I just guessing.) If you get error, post the output from the dmesg | tail -30 here.
I have found a mailing list also but lost it...
EDIT: I find it: http://lists-archives.org/spca50x-de...spca-v4l2.html
I have no idea how to leave a message in the mailing list.
EDIT2: The man who have created this doesn't seem to care about the answers. <_<
Another solution could be to use the old version of gspca with the new webcam drivers. I will try to get it work, but first I must remove the new version of gspca.
Maybe we can get the old webcameras to work!