How to get this script running with GS

[FredK]

Thanks for the offer Matthew. I've done some testing with the script on its own (something I should've done in the first place) and the issue seems to revolve around paths. I can't get the script posted above to behave when stand-alone, but I have an older version contained in a single file that does work as stand-alone, as long as the files are placed in the right location relative to the gallery folders and the script. I'll do some more testing to see if I can understand it better and if I can't I may take you up on the offer.
Thanks.