It's funny you posted this, I just downloaded this trainer last night and took it for a spin.
These are the steps I took to get it to work.
Start Game
Alt Tab to minimize game
Start trainer
Bring game up
Activate trainer
You don't have to ALT TAB again after the first time. I got health and mana to work and didn't try anything else although I assume the other options work too.
This is the only trainer I found in a while that the game has to be launched and then the trainer. I have the steam version of the game.
Also, try running the trainer as administrator. I use avast! and it didn't block the trainer.
Hope this helps.
Yes, it is funny. Thought I would play it again and so glad it works on my Vista, can not remember when it came out. Your instructions were letter perfect and thanks so much, so I am a happy camper so to speak. I have been wanting to play a bunch of the old ones now for awhile and this is great. Thanks so much for your help.
maggie