Hi Everyone. Just to assist future members of this forum, our original problem is now fixed and the robot is operational. In the end I had to change the hard drive and reload KSS. Somehow the original owner had a 320GB drive in the unit(and I assume operational) but I could only get the unit to accept a 80GB then 120GB drive to get around the XP limit on drive size. Then with this smaller drive and a reload of KSS (from new disks) all is good.
Thank you for everyone's advise to solve this problem.