You can get Real Producer from the following page: http://www.realnetworks.com/products/producer/basic.html .
Step 1 - Open Real Producer, whether you use
the Real Producer Wizard or not is up to you, the settings
will be the same at the end. Below is a snap-shot of
what the settings should be:

Figure-1 (Configuration)
Step 2 - Choose what you want to stream, "Capture
Audio", "Capture Video", or both.
Step 3 - The Title, Author, and Copyright depend on
your personal preference.
Step 4 - Choose whether you would like "Sure
Stream" or "Single Rate", the free version
or Real Producer will not have the option of "Sure Stream".
Step 5 - Choose the speed(s) you want to encode for.
Step 6 - Chose the quality of media you are
using.
Step 7 - Specify the Settings for the Real Server.
Step 8 - If your settings are all correct pushing
the start button to begin the stream.
Step 9 - To listen to the broadcast you would
need to connect your Real Player to: rtsp://real.prohosting.com/encoder/myrealfile.rm