It's still not working. I know my shipping is Fedex. Here are the api credentilas for my gateway and Fedex
LinkPoint/First Data store # 1216141
Authentication Key: 2eGzFnOD9Y5PqXFX
Meter Number: 101616993
I have not been asked to use the authentication Key. There already is some link in that area that shows up there automatically. Maybe this is a problem.