The stream above is a 128 kpbs stream that is high quality.
The stream above is a 64 kpbs stream that will reduce the amount of data you download to listen.
If the streams above don't work, you can try this one.
If you're still having trouble, the sure-fire way of playing the streams is by using VLC media player. You'll need to install it. You can find the download and instructions for VLC setup here
Then, follow these instructions: