I don't think the AI works adequetely to be playable in a single player version, pretty much you need a few people to play a game.
PBEM or PBW are ways to play a multiplayer game, Play by email, and a host manuelly makes the tunrs go by, or Play by Web
http://www.pbw.cc/ which is a server which hosts games and takes care of the turn processing, and it can host alot of different mod games, but I dont think this mod is up on it.