Gotcha. That post is pretty old and the theme has had a pretty substantial update a few months after that was written. Let’s start over.
Make sure to copy all code for this directly from the support site and not the notification emails. Go to the theme editor in the Appearance section. First file to edit is footer.php. Right below this:
<div id="footer" class="clearfix">
add this:
and save your changes.
Next edit functions.php and add this to the very bottom:
and save your changes. You can try the same CSS as a starting point to providing styling for the widgets.