Your friend has a SHOUTcast DNAS (server) hosted, right? From the sounds of it, you're just trying to connect to a webserver.
For a full description on how all of this works:
Check out the Sticky post titled:
SHOUTcast: Important Info & Answers to FAQs. READ ME!
Scroll down a bit and look for the section titled:
How to Setup a Live Audio Stream -> How to set up an Internet Radio station
How to Setup a Live Audio Stream -> 15 Steps to setting up SHOUTcast
Additionally, check out these tutorials:
See if this post