I know how to play PBEM and will help anyone out who doesn't know the technical parts.
The main thig isa that when you LOAD the save received from the previous player's turn, then you do your moves, at the end of your turn you press the round botton to save your turn. But we'll talk about that when the time comes.
the most complicated part really is for the person that acts as the host, that is the player who begins the game, as he has to set up all the players, etc.