Hi I would like to point out that the downloadable map editor which is hosted here at StrategyCore is missing the "tools" folder. This folder is supposed to contain executables which allow the map editor to compile and save changes to the game. For example if you have the GOG version and you downloaded the map editor from here you still wouldn't be able to mod anything, you could only view the files and tables.
Here is the tools folder, copy it into your game's main directory and you will be able to compile with mapedit
I think this whould either be added to the hosted map editor here or it should be added to the downloads section