Pop-over not working Wordpress 3.3

Hi, the pop over plugin is not working. I notice a few similar threads here but I have not found my answer. I have only 1 rule set up i.e. if visitor not logged in. I've cleared cache and cookies. My theme has the following header hook: <?php wp_head(); ?>

Can you please help me troubleshoot this..? My website url is http://www.deepervibes.net

Regards.