Is there an Internet Radio app for stock WM 6.1 on Verizon?

[Musicmama]

A friend just started his own internet radio station and I'd like to be able to get it other than on my PC. He's an "i" guy so Windows and WM stuff are out of his expertise. Slacker radio (suggested elsewhere on this forum) is only available for WM 6.5 according to their website. Pandora (also suggested elsewhere here) doesn't find his station either because it's too new or because it's too eclectic. The "standard" Windows Media Player doesn't work, or else I don't know how to make it work correctly (in which case, guidance would be most appreciated).

Are there any other apps/players that I could try? Thanks in advance for help.