Hi Scribu,
Thanks for the reply, I’ve got to the bottom of it, it’s all to do with me not fully comprehending serialized data types.
If anyone else needs help with this, this site explains it brilliantly.
As a follow up question though, is there any quick, non-manual way to change the string-length values in the serialized data for the new domain? I’m guessing as you developed the plug-in you may well have moved it around a bit from server to server in your time!
Thanks again.