That's odd, because the patcher definitely works for me (just tried it again in case I was going crazy). Just to make sure, you're definitely using the patcher on an unmodified version of the index file you get from the game's official download - FTAG 064a.zip from the Downloads section of the page?
Though yeah, if you find a better way - ideally something that can handle multiple mod installs while not requiring the user to download any programs - do let me know :3