I fixed the problem.
I got my webcam on my advent 9215 laptop to work by going to the device manager in control panel. Clicking on the imaging devices tab. Select the usb 2.0 camera, right click and disable it. Restart the laptop then go back to the device manager and turn the camera back on. Go to your msn messenger do the webcam setup and you will see the LED by the webcam has turned red, this means it is working. This worked for me hopes this helps!