A lot of information there about the "Trans Program" Error which is common with these cars now they have a lot of miles on them. I regret that you sold the car cheap but a search finds 5000 + posts about this subject and re-soldering the pins in the TCU is mentioned in some of them
I tried to organize a post in a systematic way for this problem some time back. If you can't find it I can forward it for future reference.