Hey. If you are looking for URLs, the answer is simple. I like to use shoutcast to find the URLs that i'm looking for to use in BerryTunes.
On your Windows machine, first make sure you have the latest RealPlayer.
Then in Internet explorer visit SHOUTcast | Free internet radio!
Click on the yellow tunein button for the station you like.
It should open realplayer as long as you have it as your default. If you don't then set it to be for all types of music.
Then while RealPlayer is playing the stream, hold down ctrl I and it will bring up the URL for the stream.
Create a new station in BerryTunes with this url (example is http://scfire-dll-aa02.stream.aol.com:80/stream/1074
This works for me every time and the streams are really good.