[thread moved to Virtual PC section]
You need to move it the same way you'd transfer any other operating system, using a tool such as ghost to make an image of the current OS, restore the OS to the new (virtual) hard drive (that you've created inside virtual PC), and then let the OS boot and install the changed hardware.
Regards
Rob Moir
Brace yourself. For when I speak these words you may well suffer an attack of explosive amnesia.
For you see, the horrible secret is -