Are these the same as yours? I put them up some time ago but then migrated to asf streams, because, as Mr ChriZ pointed out at the time, if you use the asf streams, then MC can utilise it's display window for things like GForce and 3D visualisations.
The RP ones don't...
The BBC don't take kindly to us connecting to their streams externally, I seem to remember it being in their terms and conditions that if you wanted to listen, you had to use their online player.
of course, I might be massively out of date with that lil' nugget, it's been a while since I was anywhere near their website!
-marko