Hello,
please install the lastest drivers for this webcam.
Please try first without video and audio codecs.
This should be done easily!
If not please uninstall and reinstall the drivers.
I use nearly the same notebook with the build-in camera on Vista!
And if I remember correctly I have done the uninstall and reinstall process several times
If this is running, you can try several already installed video codecs
or you install the free available Divx or Xvid codecs!