Placing the presenter files in the appropriate location should allow them to be seen and used by Presenter. I have done this periodically since Presenter 6 and it has worked for me. Each presenter should have their own folder with the associated bio and images. I'd make sure that the folder/file structure is correct. I don't believe that moving to Presenter 10 would make things work any better or worse.
I hate to ask it, but did you try restarting the computer to see if that helped Presenter wake up to the new presenter files?
It's a good question, but I did restart the computer.
I'm on the phone with Adobe support right now and they say it's completely impossible to transfer presenters from one machine to another.
Ok, Just tested between two computers using Presenter 8 and 10 and I wasn't able to transfer the Presenter information by placing in the location, as you are seeing. Oddly, transferring themes by moving them into the Themes folder still works. However, you can still import a presenter by placing it (or multiples, say one per slide) on a PPT deck on the old computer. Then bring that PPT presentation over to the new computer and open it. You should see all the presenters associated with that presentation in your Presenter's list. You may have to go into the edit function to modify them, but the should appear. It looks like the images may have to be reapplied, but you can still get most of the information there.
Completely impossible seems like a strong position to take.
Thanks Jorma, that was exactly the solution. I made a test deck with four presenters, one per slide, on the old computer and moved it to the new computer. Then I opened the deck on the new computer and there they all were. Now I'm making a "master deck" that's got all of our presenters that we can use to move them all.
Thanks for your help on this!
Glad we didn't have to accept the answer of it being impossible.