How to install custom components?

http://www.adobe.com/devnet/flash/articles/creating_as3_components.html

This tutorial tells you how to create a component, but all I need to do is install and use the MenuBar component he creates. I can’t seem to find instructions in the PDFs about how to install it, and what information I did find didn’t give me enough info to make it work completely.

I just need a quick, “put these files here, put this AS code in the first frame” kind of explanation. Thanks!