(1) If you go to the shoutcast website and click "tune in", you can save it to your desktop.
(2) Open the saved file from your desktop and delete all but the first song in the "playlist"
(3) Open your Shoutcast playlist and click "add file"
(4) select your edited shoutcast file from your desktop and it'll add it to your Shoutcast playlist
Put it in your playlist directory and you should be fine. I build my SHOUTcast playlist at home and then load it into my playlist directory. Then it's in with all my other playlists that I make on the fly (including 1 star, 2 star, etc.)