that might not be it, on second look. You need to disable the widgets in your sidebar, and stuff. That will make it easier.
You should not be using ANY theme that contains obfuscated code — whether its to hide a sponsor link, as is the case here, or to send 1000 PHP based e-mails from your server (yes that can be done, using obfuscated code).
Decoding that crap is mess; its infinitely easier for you to disable the extra stuff thats being added by widgets and plugins, and then just compare the source HTML to whats inside the theme files or file in this case .. since
the downloadable theme’s single.php contains this:
<!-- content end -->
<?php get_footer(); ?>
everything after that comment (in your source) is being added by that file.
Get rid of the dynamic sidebars, widgets, etc.. and there you go.