This kirupa.com tutorial is either very bad or I'm missing something

So I’m new to classes and followed this tutorial here:
http://www.kirupa.com/developer/as3/classes_as3_pg2.htm

Am I not seeing something or doesn’t the tutorial explain how to actually import the class to .fla(not that I didn’t figure it out), but for someone who wouldn’t know about that, the tutorial would be waste of precious time.