I'm not sure. I just tried it with 1.04 and it doesn't seem to work. I do know that the update was pretty big (in size and application), so we might have to wait for a new version of the trainer.
EDIT: I just tried it again and it was working. I'm not sure exactly what changed between attempts, but I muted it and ran the game again. I guess keep trying it, run it as an administrator, run the game a few times if it doesn't work. Hopefully this helps out somehow.