From the Flying Giants forums, it looks like you got things sorted out....
You can use either of the micro-micro trainer cords.
Actually, no my post here was the last status (I don't think I've every posted on Flying Giants): intermittently working correctly/not transferring control, finally not working at all on the latest attempt. Someone on RCG suggested it might be the training cord with the voltage reducing circuitry may have been the issue. I don't have the other cord w/o the voltage reduction to test so I'm not sure.