Each game is run by a GM, a live person who administers the game, including being a neutral person who adjudicates each turn (with the help of software).
You submit moves by emailing that person. I think, if I remember correctly, I am likely to be your next GM so you will do so by emailing me. A gamester email for re001 will come out soon.
Also, side note - GM's volunteer their time to run games because of their love for the game so please bear that in mind. The upside - each game gets a positive human touch.
Garry