Hi, Creative has a driver download page here:
Creative Labs Europe | Customer Support: Downloads You'll need to know what type of blaster you have though eg, Audigy, X Fi and so on. Good luck.
I did some looking and that sound card has now been discontinued. You can find XP drivers here:
Link Removed - Invalid URL They may work in Vista but perhaps you've already tried them. Your only other option is to upgrade the sound card. The basic Creative Sound Blasters are usually very cheap.