You can pick them up again by going to each particular BBC radio station site, clicking on the station's "listen now realplayer" link. You may get a warning window appear telling you you don't have the right plugin, just close it. Go back to the window with the listen now player in it, and hold down the stylus on the "listen in standalone player" link. You'll get a small menu, one of the options is "add to media library", click on this and the station address is added to the Internet Radio applet as well.