There has been a few occasions in the past where a trainer update has come out and I've downloaded it and whatever else have you then rebooted the trainer manager only for said trainer to show as still needing an update. If you get this error Delete the old trainer before updating and the trainer manager will register the new one as being correct.
Hope this helps some people
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem