The box need to be rebooted before channels will show, also when selecting the file to install make sure you select it, there should be a green tick next to it, then press the yellow button.
Just to check you have put Aj's list "TP_PROG" on a usb key then inserted into the F5S, then in the tools menu I think you sellected "Upgrade By USB" ?
If you have no channels found try and have a look in menu --> Network Local Setting --> Camds Setup --> CCcam Client Setup --> Manage Config Files --> CCcam.cfg and see if you have anything in there. If so as keithw said make sure there is a green tick to the right of it if not press ok then exit and save.