I seem to be having the same problem as Chilly2001. When i activate the trainer the game crashes after a delivery even if no option is turned on, also the add xp doesn't s seem to work. Both programs run as admin and the steam version is running. Any ideas?
I still use the trainer but just for no damage and all I do is once I have parked the trailer save the game alt-tab back to desk top close down the trainer and go back to game press T (if it crashes at this point just reload your save game), this seems to work for me at them moment.
I do not use the money or exp cheat so I cannot comment if they work or not.
Hope this helps