Check out the Sticky post titled...
SHOUTcast: Important Info & Answers to FAQs. READ ME!
Scroll down a bit and look for the section titled...
General SHOUTcast Information -> SHOUTcast ToolBox (All sorts of nifty add-ons for SHOUTcast)
1. The PHP based XML parser is a complete solution and comes ready for you to customize.
Also, for an html implementation, check out:
Oddsock's Do Something DSP plugin
Also, for ASP:
for a free host that supports ASP.