How to Create anExpanding/Collapsing Tree Menu

Create anExpanding/Collapsing Tree Menu for this Tutorial:http://www.wikihow.com/Create-an-Expanding-or-Collapsing-Menu-Tree-with-Sothink-Tree-Menu
Tree Menu download: http://www3.sothink.com/download/stmenu.zip
WHAT ARE THESE THINGS?

Tree Menu are extremely useful tools can create clear navigation bar for huge website.
If you have any questions, please post a reply and I will help you.