I too am having issues, it activates but then after about 30 sections all it does is start repeating Activated, over and over and over, and I have to kill the trainer via Task Manager.
This is without even activating any of the cheats. I am using the 3.20 steam version of the trainer. I just got it on steam sale so i'm assuming that that is the newest version, as I can not find the version number for my copy anywhere either. My F key and num lock are both on as well.
I have disabled antivirus, I have my windows firewall disabled completely, I have made ALL the exe's run as admins, the game ones and the trainer. I am not running anything like fark etc.
It happens EVERY time I launch the trailer and hit f1. I have read the NFO and am following the instructions listed in it as well.
Not saying it's broken for everyone this is just the symptoms that I am getting with the newest version of the trainer. I am running W7 X64 though and the trainer registers as 32 bit.
Activating any cheat or pressing "4" multiple times simply crashes the game. Game plays fine without using cheats, so its not a faulty copy. I would love the upgrade points, could care less about any other cheat.