The V4-WM files comes with a readme, the text of which you would have had to scroll through to be able to see the download link to download the files. There is not really much more to it than that.

For more general help using Wardrobe Wizard:-

If you click the Wardrobe Wizard "Convert" button to open up the main Wardrobe Wizard window you'll see that to the right of every panel is a button marked "?". Click it and you'll get a pop up with a quick run down of what the adjacent options do.

If you click the Wardrobe Wizard "Help & Hints" button you'll get a pop up with a number of helpful hints. One of which is to visit the Wardrobe Wizard web page http://www.philc.net/WardrobeWizard.php

If you visit http://www.philc.net/WardrobeWizard.php you'll be presented with a page outlining the application's features. At the top of the page are button links to other pages, two of which are video tutorials.

Then there is an entire chapter for Wardrobe Wizard in the Poser manual.