|Still fumbling around trying to get to grips with the Linux operating system I recently (18th May 2009) updated my favourite distro on my desktop tower computer to Linux Mint 7 (Gloria) and tried to get Skype up and running, only to discover that my little USB camera (in the shape of a fluffy dog!) wouldn't work. At first I thought I needed to download a Linux Driver but apparantly drivers are now incorporated into the kernel. In Linux Mint its the "gspca" file. Earlier versions - including the one in the latest Mint release - caused problems but happily the file is constantly being developed and after trawling the web discovered this "gspca development repository" site and downloaded the latest development update file.
There is a bit more background information here which may help you - but bear in mind that's for Fedora
The next step was to expand the archive simply by double left clicking on the downloaded file and dragging the resulting file onto the desktop. Right click on this file and choose to open in a terminal. Then type "make", then "sudo make install", followed with a reboot. In my case when I opened up "Skype" or "Cheese" the camera worked!
Hope this works for you too