How do I do that?

The version is v.1r09f

I have a diablo tirinty in my 2008 gmc sierra denali and when ever i put a tune on it make my tranny slam only from stop to go or crusing to full throttle, and it does not do it if i drive it around with no tune.. please help me i kind of sucks to spend $700 for a tuner that works as only a monitor ...

When I try to set my truck in a tune it says back up was corrupted (4)
I have tried calling but by the time I'm finished work your close. I have owned it for about a week and right now it's just an expensive dash ornament
If someone could please just tell me what I have to do It would be much ...