Use the 'XP Wizard' to make your scanner work with it. XP has it's own scanning program too, so you wouldn't even need to use the old software if you didn't want to.
I have 3 computers, one with 98 2nd. one with XP home and the laptop with XP pro. The 98 is by far the hardest to use, even though I did for years. XP is faster and more user friendly. Change is always hard, but 'try it , you might like it"