“About” on the footer is not showing up

Hi,

I am trying to setup a blog for my cousin using Derek Powazek’s Depo Skinny theme. Everything seems to be working fine except for the “about” excerpt on the footer that is not loading part of the “about” page content.

Here is his blog tentative: http://humbertoborem.com

Any idea? Here is part of the code located on the footer.php

<div>
<strong>About</strong>

<!-- The text in the "About Yourself" box on your profile page will automatically appear here. -->
<?php if (have_posts()) : the_post();
the_author_description();
endif;
rewind_posts(); ?>

</div>

Thanks a lot!