Sounds like you should use a relationship to match author records to publisher records, but I wouldn't use names for the matching, I'd use ID values such as auto-entered serial numbers.
When I paste, I see it has copied EVERYTHING from the Publishers layout
That sounds like "copy record" instead of putting the cursor in a field, selecting all data in that field and using Copy to copy the value to your system clipboard.
And such copy/paste actions are not the best approach with scripted finds anyway.
You might find this thread of scripted find examples helpful: Scripted Find Examples
Thanks for the links and info. I solved it though. Guess I need stronger glasses; I was missing a colon between Publishers and Name.