Wow, after reading through that whole thread, I saw noone give this advice, as it was the first thing that was said to me when I first had trainer problems:
NO MORE THAN 1 TRAINER ENABLED AT ANY GIVEN TIME
Also, to all the people who say that if you change the settings in EvoX it won't stay that way unless you edit the ini file.... You're liars.... All you have to do is change what you want to, then either use the EvoX menu to reboot, or shutdown the Xbox.
That's what I've found in my many hours of trail and error testing. And I was just reading this thread wondering if anyone had any helpful hints on creating trainers before I create a program that should be a lifesaver to many trainer creators/wannabe's....