Don't ask me how to interpret this data. Without a printout of the software versions your particular vehicle came with I don't know. They likely have a way to read the version at the dealer when they plug in their scan tool to your vehicles computer.
"...they ran the latest "improvements". It now has less low RPM power / torque but seems to be tuned to the upper RPM range where it screams. I prefer the way it was. Problem is that the dealer cannot go back to an older program."
IMO trucks (and truck-based SUVs) ought to be peaked out for low RPM torque. That's what I am afraid of- having this done and not liking the results. Sometimes the latest software "update" causes changes or differences that are not desired (kinda like upgrading Windows or your computer BIOS) Sounds like they retuned yours for less low-end power off the line in an effort to get better "city" gas mileage. All I want ( I think) is the 1-2 upshift update if I knew what they meant by "improve feel of 1-2 upshift". Maybe I will just wait 'til Hypertech comes out with their reprogrammer. With that device, I believe you can reload your original saved software version.