First on your PC go to Welcome to Moodio! | Moodio and set up your "account" and stations list. Then you log on to moodio on your blackberry at m.moodio.fm.
I am loving this site. It is letting me connect to my family and memories in very interesting ways.
My Dad's cousin hosts a jazz program on WAMU in DC on Saturday nights. I can easily listen in from my berry. And my old college radio station, WRCU/Colgate in Hamilton, NY streams and I listen to that every now and then for old times sake.
I can also use it to listen to the sports radio stations in Boston when I am out of range.
It's just a great way to reach out and listen to stuff you normally would not be able to receive or wouldn't want to be tied to your home PC for.....