Computers! I got the link between Rasputin and Trotsky working - all is well in LANville! It was permissions. All I had to do was change the permissions on the folders I wanted to access from the W2K box - they were set to 700, which disallows anyone but the owner (which was set to nobody, btw). I changed the owner and the permissions as well, and now all is beautiful.
I backed up all three partitions on Trotsky to separate folders on Rasputin, then Ghosted all three partitions to GHO files and copied them to Rasputin as well. It feels good to have backups once more. Rsync would not work between the units - I think perhaps SMB just doesn't support it.