Help for Vocabulary Index Menu

Hello,
I have installed Vocabulary Index module.
I have followed instruction from readme file.

Installation instructions
1) Place the contents of the *.tar.gz file you just have extracted into the
modules directory of your Drupal site
2) Go to Administer > Site building > Modules at your Drupal site and enable
Vocabulary Index. You will get a confirmation message that contains further
instructions on how to set up Vocabulary Index.

I want to achieve the same effect as the one shown in the screenshot.
http://drupal.org/files/images/screenshot_tree.preview.png

Can you send me the steps?

Thank you in advance,
Kenzol

_{Edited by WorldFallz - moved to appropriate forum.}