I have uploaded the source files for both the game and the editor. Just extract them in the game directory. You will also need the respective .gex extensions/DLLs - the game will tell you which ones you’ll need, it’s easy to google for them or get them from the official Game Maker community and their size is minimal.

LINK (2.71 MB .zip)
http://www.mediafire.com/download.php?t5mmy4zmmyr