Telepath RPG: Servants of God does not auto-update.
To update the game, download (http://sinisterdesign.net/Downloads/Telepath%20RPG%20Servants%20of%20God.air) the latest version of the game's installer, then run it. It'll say "preparing to install," then ask you if you want to replace the current install. Click Replace. It'll update the game, but keep your saved games and such.