I bought a Simpletech 250 GB USB to Add to my server and it cam with Arcsoft Backup.
I am not adding my 250USB to the Server as additional space, I would prefer to backup my public folders & shares created with WHS to this drive... Has anyone used Arcsoft on WHS?
While you can try it, you will probably not have much luck with Arcsoft. Because of the way Windows Home Server stores only tombstones on the D: partition, there are no traditional backup tools (ArcSoft, NTBackup, Backup Exec, etc.) that Microsoft knows of that can back up your shares.
Your best bet will be to use a file copying tool like robocopy to "sweep" your shares to your external drive.