Hit the nail on the head.
I installed Vidiot Maps just now and confirmed this works. Here's the steps, in case you, the forum reader, want to try this (close Paragon Chat first!):
1. Install
Vidiot Maps from Sourceforge (I REALLY hate them after Dice took over and started all sorts of shenanigans, but the Vidiot Maps program isn't popular enough to catch their radar for sales. I installed it and didn't get any drive-by installs. If someone else has a mirror, I'm glad to replace this link.)
2. Point the installer towards a temporary folder you make somewhere. I made a empty folder on my Desktop. Once the installer finishes, open the folder. It should show a folder called "Data" and an uninstall app to remove the custom maps. Highlight them all and copy.
3. Open Windows Explorer/File Explorer and type "%APPDATA%" into the Address. Find the "ParagonChat" folder =OR= Open Paragon Chat and click the blue folder icon.
4. Open the "client" folder, which should also have a "Data" folder among others. Paste the contents there.
Done.