You just need to copy the bpa folder from the servers c: drive to some type of external media.
If you ever need to restore a backup, all you need to do is put that bpa folder back into the c: drive of whatever computer you want. If there are other clients involved then you need to reconfigure the network drive and probably re-run the network setup program.
A note on this. Server terminal licensing will be enforced if you ever switch servers. This requires a call to Business Software Solutions for activation.
Business Software Solutions, Inc.
(801) 336-3303