Quick easy question!
 

So If I want somone to join in on my Shoutcast and listen then I just tell them http://000-000-000-000 (WHatever my ip is) and they just click on it and boom they are listening to it?

DNAS link: http://yourDNASip:yourDNASport
Listen link: http://yourDNASip:yourDNASport/listen.pls

Just replace yourDNASip with the ip of the DNAS (SHOUTcast server) and yourDNASport with the DNAS port (default is 8000)

Machines on the same lan as the DNAS (you) need to use the lan ip of the DNAS to connect/listen.
Machines not on the same lan as the DNAs (the rest of the world) need to use the real, world-visible ip of the DNAS to connect/listen.