I got the trainer to work - turn your antivirus off (I disconnected from the internet but you don't have to, just don't do anything stupid), launch the trainer, THEN the game - some options don't work (XP and skill points), and the money one gives you 999999 of a few items (which weighs you down, but you can turn the 'no weight' cheat on then run to a trader and sell it all at once) - sadly you can't drop it all at once.
So yeah - to get the trainer to work just do what I did (not all steps may be necessary, just posting my fix)
1) Turn AV off
2) Launch Trainer
3) Launch Game (I had it in Windowed mode to make alt tabbing easier - not sure if necessary or not)
The health option seems to work and not work at times, I think there are some elements in the game where your health will go down regardless, but with the cheat on my health never went below about 20% for bosses, and never went below 100% for all non-bosses. Weird.