How about this..
'Automatically backup files, directories, even entire drives! Karen's Replicator copies selected files from one drive/folder to another. Source and Destination folders can reside anywhere on your network.
Options include repeated copies at intervals as short as a few minutes, or as long as several months, copy only files that have changed, and the replication of folder and file deletions.'
http://www.karenware.com/powertools/ptreplicator.asp
I know it works on 7 64 as I have it.