I also experienced this issue. The problem seems to be with the ver= query string that is added to the end of the jQuery Tools script, which causes a 404 error, and therefore causes things to break.
Besides this error, there seems to be a conflict with the version of jQuery and the version of jQuery Tools being used.
To fix this, in the plugin file /php_includes/housekeeping.php at line 311, change:
wp_enqueue_script('jquery-tooltip', 'http://cdn.jquerytools.org/1.2.5/jquery.tools.min.js', array('jquery'));
wp_enqueue_script('jquery-tooltip', 'http://cdn.jquerytools.org/1.2.7/full/jquery.tools.min.js', array('jquery'), null);
Notice the version change (1.2.5 to 1.2.7) as well as the added null to the wp_enqueue_script function to prevent WordPress from adding the version query string value.