I have a scanjet but it might go the same way. It has to loaded a certain way or it will not work.
The scanner has to be left unplugged. The drivers & software are loaded. At some point you are asked to plug the scanner in & it finishes off the installation.
If you didn't do it that way try removing all traces of the scanner software/driver & start again. If you have anxp driver there is no reason why it should not work.
If you did do it that way then I got no clue.
This is one I just found. Did you have a look at the htm.
"Windows 98, 2000, ME, & XP driver.
Unzip to temp folder and double-click the htm file and print out the installation instructions. When ready to install just double-click the web.exe file."
Found it here. Not sure if it is the driver for your scanner though. Have a look.