Fristly thanks David and Mike for your input, I have learnt quite a bit from your comments.
I had know idea about AS so I will definately investigate that!
I also tend towards using IE for all file manipulation and often find this is at odds to the way applications are written, hence my current predicament. I used to have a work in progress folder and gradually move things from there but I must have had a rush of blood to head and swept all my unlinked items in one go! I blame it on old age!
I assumed that FH just records the path to new media when you add, and that could be anywhere and probably not in my preferred location, and of course FH will not find media if I move it after adding, so what to do?
I would have thought it would not be particularly difficult to alter FH to have filter on the Add function that would screen out linked files, instead of just using a simple IE type file selection window. Unfortunately file dates are not move dates so I can't use them
I will study your methods and see what will best dig me out of the hole I have created for myself

Tracing the Devon Bellamy family along with their partners.