Here is the link to BB AppWorld to find a couple local radio station apps here: BlackBerry App World - Search Results for "AirKast"
Also check out there own site here: AirKast, Inc.
It is a free app also.
If you don't have a computer you can just type in AirKast in the BB AppWorld search area.
Here are a couple screen shots of the app.
I am in the process of testing out version 2.2 since version 2.1 had several bugs and issues.