Ghost (12): Moving or Importing Backup Sets

I want to move some backup sets from one NAS to another.  I tried the move function in Ghost; it was disastrously unsuccessful, but I'm not so concerned about that at the moment.  I copied the complete set of files to the new destination manually; is there any way I can get Ghost to simply recognize these sets on the new NAS unit?  (It seems like such a simple thing to do.)

 

BTW, I know that I can always use the Recovery Point Browser to access any sets, but I wanted to have Ghost remember the history information for the backup sets.