Hi serTel, welcome to the forums.
You can get Vista drivers
from the Mustek Support page Here
You will then need to click 'Driver
Enter search details
Click the 1 driver found
Click 'Drivers Download'
Click the language bar (indicated)
Click 'Download ALL'
Once the driver has downloaded you will need to 'right-click' the saved EXE file and in the 'Compatability' tab choose 'Vista'
Hope this helps