To receive a radio show, you need to subscribe to it. See here how to do it: Subscribe to a show
Once you are subscribed to the show the new episodes will appear in the Episodes menu at the Syndicast Distribution System.
You can download it from there by clicking on the episode. You can download each shows is 320 or 192kbps mp3 as well as the episode artwork and tracklist.
Download and broadcast the shows. Do not forget you must keep the broadcasting time up-to-date all the time.