ULTIMATE SOLUTION (at least for me) . . .
Last night I came up with a super idea. The Network Routers in my office (Netgear WNDR4500) support what Netgear calls "ReadyShare" via the attachment of a USB dongle (or Drive) to the USB port on the rear of the Router. I had never used this feature before, but it occurred to me that maybe I could configure this to be incorporated as the File Repository for my WCP238. I did some checking on the internet and from the best I could determine "ReadyShare" would support SMB transfers.
So this morning when I got back to my office I tried it. The configuration was relatively simple on the Router end, and the Scanner end setup was just like the normal Windows XP configuration for using SMB. Just be sure to use the Host Name "readyshare". Your Share Name can be whatever you want, configured in the Router for the USB share. Login Name and password appear to be irrelevant, but the only items left "unprotected" in your Network are the pdf files that reside on the USB stick on the Router.
This solution ends a major headache for me that has been going on for several days now, ever since I had to replace the XP computer that had acted as the File Repository for our WCP238 . . . :smileyvery-happy: