Necroing dis floof.
The link for the Windows Media Player plugin on the radio's page itself goes straight to the download page for the plugin. This plugin works with Firefox.
If you have Chrome, just google "windows media player plugin for google chrome" and click the first link. It has a download for Macs as well.
If you've already downloaded the plugin and it still won't work, sometimes it can be a little buggy. Just restart your computer.
I'll edit the radio thread later and give us a new tinyurl link that way people can see the info before they ask these questions xD