I seem to have the same problem as Callster.
I downloaded the v1.2 patch, installed it, set all permissons for both trainer and game to Administrator, placed the trainer in the game directory, and launched both it and the game as the Administrator, but I get a "Overlord.exe has stopped working" error message when I sign in.
Can someone help me?
Nevermind, I figured out there was an error in the readMe.
It says you can start the game before the trainer and vice-versa. What I've discovered is that the trainer will work only if you start the game, load your profile, and load a game before you start the trainer.
I have Windows Vista Home Premium, so that may affect it.