trainer is telling me trainer can not find game. do i need to apply the day 1 patch?
The trainer was written for the original steam release, I assume it was written for the patched version therefore, yes you would need to apply it.
The game has also two different executables, one for DX11 and one for DX9. It seems like the trainer was written for the DX11 version of the game as I'm getting the same issue you mentioned with the DX9 executable. The DX11 version instead works flawless. I'm sure Caliber will give you a correct answer about the supported versions.
[Edited by 0x90, 8/21/2013 4:56:13 PM]