First off, it's lsusb, not iusb (that's an 'el' not an 'eye' :-) ).

Second, for the dmesg, the "| tail" part should restrict output to just
the last ten messages - which is why I asked you to plug the camera in
just before running the command. If you really are getting a lot of
info, try

dmesg | tail > dmesglog.txt

which will put all the output in a file called dmesglog.txt in whichever
directory you run the command from, then paste the contents of that file
on pastebin.com (it's pretty straightforward, you should find it fairly
easy :-) ) and post the url, so we can have a look at it.

That message you're getting looks promising, though. It indicates that
the kernel is at least seeing the camera when you plug it in.