1) The playtest version, since we are not restarting.
2) Yes, the turn was only modified, but it has not been played by the French player yet.
3) Yes, one of the reasons I wanted a restart; the cheating definitely affected the battles. But since we are continuing, the choice is yours. It seems kinda futile to me though; France and U.S. vs. Germany and Russia? It would be in France's best interest to make peace, but it's your call.
4) Apparently you don't have to modify anything; the file Eivind posted seems to have leveled it off about right.