Ok I have actually fixed the problem.
In order to activate the trainer the game must be in Windowed mode. It cannot be full screen.
The trainer must be alt-tabbed to be in the foreground.
Press F1 and the trainer will find the game and activate.
I have never had to do this with any other hack or trainer I have ever used. I am grateful that the trainer is here, but what a pain in the to get the trainer to work.
i have the retail version and all just like you but dont need to be in window mode to start the trainer other than that glade you got it to work