Re: Scanner Problem
Unfortunately, you haven't provided any details of the printer model so we can't check it's compatibility with Windows XP. You said it used to work with Windows 98SE. Did you check on the printer manufacturer's website to see if they support Windows XP for that model? (ie do they have a Windows XP driver for it).
If it used to print & scan on Windows XP before this issue started, try re-installing the XP driver package.