I have searched for the drivers for your camera for use with XP and it appears that a lot of other people would like them too
It seems to work fine with 98 as yours did but not with XP.
A few people have suggested transferring the photos to your PC by using a flash memory card reader rather than directly from the camera, as I suggested as a possible solution earlier.
So it looks like there is a conflict with your camera/drivers that could be causing the PC to crash.
Can you use sytem restore to go back to before you installed the camera ?
Failing that uninstall the camera/drivers and then see how your game plays.
If the game is ok then look for a card reader or an XP compatable camera