"Arghh! I downloaded the game to my brother's user on the computer. It ignored my turn orders because of that!"
You do know you need a separate copy for each player to play MP?
I would not mind starting over if you are really screwed (not just cos I have slightly the wrong pretender & no password!)
unless they are on the same computer and take turns because he said his brother's user so i think they are on same computer with different log ins or something and are playing like hot seat mode