I have since found out (through the device manager on XP) that my display driver says that my graphics device is:
I went to the SiS website but they do not offer this driver for Linux, only M740. I'm assuming that this will not work.
However on further reading I discovered that my xorg.conf is an important file to do with this, most recommend that it should read something like Device "SIS"
however my xorg.conf reads:
Identifier "Configured Video Device"
Identifier "Configured Monitor"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
I hope that this allows enough information for somebody to help me with this problem. I am not into gaming and as such have no need for 3D effects etc. However I am trying to setup Skype and the lack of a working video driver really does seem to affect the webcam; so far I can't get Skype or Cheese to work properly.