We tried to buy the retail version but no local stores had it. We've wasted a good bit of time trying to find this elusive version of the game. We now have more big games that we must look at so this is behing shelved for the time being. If you guys want the trainer to work, either buy the Steam version of the game or email the devs and tell them to update the retail game to the matching Steam version.
Understand Chris...the timing is bad.