Unregistered Version

I can’t find any information about Unregistered Version so I’m asking what do it mean? Do it have any thing about donate?

Explanations are here : http://forum.micasaverde.com/index.php/topic,35139.0.html
You should be able to see a “Donate” button in the footer of the page. if you do donate, please give me the name that appears in the footer as shown here.
Hope this helps