copy HTML code from here: http://www.nullsoft.com/ntv/publicaccess/watch.html
Here is the appropriate code to save you time. This works in IE and mozilla based browsers!
<object CLASSID="clsid:C5E28B9D-0A68-4B50-94E9-E8F6B4697514" WIDTH=467 HEIGHT=350 BORDER=0
codebase="http://www.nullsoft.com/nsv/embed/nsvplayx_vp3_mp3.cab#Version=-1,-1,-1,-1" id="nsvplayx">
<param NAME="Location" VALUE="http://lsac1-0-s01.shoutcast.net:8012/">
<embed type="application/x-nsv-vp3-mp3" width=467 height=350 codebase="http://www.nullsoft.com/nsv/embed/nsvmoz_vp3_mp3.xpi" location="http://lsac1-0-s01.shoutcast.net:8012/"></embed>
</object>
Replace the value of Location to whatever your shoutcast server URL is. like mine is http://john.brier.name:8000/ It looks like you have to do it in two places. I did this for my website here: http://john.brier.name/webcam.html