6.0l with btr stage 4 truck cam

1)its not the stock tranny to motor its a junkyard tranny Do i need program it?it seems to work it just slips in every gear.
2)its also still stock convertor i want to change it but dont want ruin a new convertor with a bad tranny
3)looking for diagnosing help or suggestions
im going to change fluid again when i got it it didnt look that bad still had some color but its still unknown to me.
22 work to parking lot.hpt07 pak to work.hpl
latest tune and log its running maf only