Arty, just a heads up. The wire colours did change through different revisions, the Red wire being mentioned could actually be a different colour in your circumstance.
I know when I did my swap, the only problem I had was with the FPR Wire, got that sorted and the car ran fine. The ECU certainly needs the TPS connected, but unsure if its required it to start the car (You would assume not).
Good luck, If you know someone with a PowerFC Ecu and controller that can help you diagnose which pins don't look like their wired correctly.
I've got one, but my commander is all through the dash and is a pita to get out.
Good luck!