By default the Help Button in dbFront will open a new web page to the Support page on the dbFront website. From there users can find all kinds of help including Video Tutorials. In the future we intend to make the user help even more robust and context sensitive.
If you want to change where the Help Button links then you can update or add a setting in the website Web.config file.
<add key="HelpURL" value="http://dbfront.com/index.php?id=support" />