I have two possible answers -- check them out and see what you think
1. My experience is that scanning across a network is more trouble than its worth but check out this site:
Networking Scanners, PC
2. I got my hands on the VistaScan updated software...
The Network scanner works great...exactly what I was looking for. I can't remember seeing the network options on the older version of VistaScan. My Umax SCSI Astra 1200s scanner is at least 4 years old and still scans beautifully.
Being able to scan from a remote computer is very convenient...when working on projects I can have someone near the scanner changing documents while I do the scanning remotely.