Well the only problem to start over is if Luke and his brother both cant do their turns. But the only way to really find out is for it to host to the 3rd turn. Maybe the best thing to do is to see if luke and his brothers orders both go through find for turn 3. If they dont it would suck to have an AI in and probably best to start over with 9 people then. And about the password thing I doubt anybody is going to log on someone elses turn.
i have no problem in starting over. no password and crappy castle choosed. one should not have a low admin castle when playing high resource cost nation.
Yeah it was probably an issue with different user names on your computer so thats cool that everything is ok now. So since is no longer a reason to make a player an AI the game should proceed as normal.