Rick, how did you gain access to the files and work out which bytes corresponded to the actual different maps?
Or was it something someone else had previously done and you were able to jump on the back of?
Remapping standard ECU's is just SO much effort if you are starting from scratch from what Ive seen although Ive never done it myself Ive always only done it when supplied with a tool to do so as TBH its less hassle to just fit aftermarket than to "crack" them like that in the first place!