I have just installed Wowza today on Amazon EC2.
My content provider is using a piece of software called M3W on Windows. This software can encode mp3 from a live event and broadcast it out to an endpoint on a media server. The documentation on the broadcasting is here: http://m3w.sourceforge.net/help/m3w0015.html
The options for broadcasting are:
Can anyone give me any pointers on how I might connect this up to Wowza? My first requirement is to encode this as an RTSP stream for mobile devices.