Thanks Wayne!
I'm pretty sure that I have the FTDI cable set up correctly. I used FTProg to invert the signal. I also hooked up a loop back and get an echo on keystrokes in a terminal emulator.
I suppose that the first step is to get MPScan up and running. I have a hard to trace "check engine" light anyway.
So the text file posted as code early in this thread with the memory addresses, what file extension does that get? I suppose I could open all the files in the directory with Notepad and see what matches the structure. But if more than one file type has the same structure, I could easily get it wrong.