Just want to give you a heads up... load the trainer once the game appears (even if its a black screen) then it will work properly.
I loaded the game up and started playing around then loaded the trainer and it had a "buzzer" sound and nothing activated.
So, just make sure the trainer is loaded up when the screen goes from "Whatever your desktop looks like" to "Black screen" just so that the trainer can be activated. Dunno if this is something that can be fixed or not, but in the meantime, load trainer once you see the black screen (before the game actually loads up)