Gus and Debra,
We have had this same problem on getting the all the satellites ..... this is when we first fired it up for the camping season.
We have the service that's a month to month deal, anyway called dish and had them turn the service on and when we got to the camp site hooked everything up only to receive one "how to set up" channel / satellite.
Called dish and found out while the tailgator was off for the winter and when I had turn it back on, it missed a crucial update over the winter. so the dish tech had me turn everything off and then they did a MANUAL UPDATE push to my receiver and it's been working fine ever since.
Don't know if this will help you all or not, Did you get a hold of the service provider and see whats going on?