The paid version of this plugin is buggy.
Inside the admin screen you'll get this PHP warning on every screen
Warning: array_merge() [function.array-merge]: Argument #1 is not an array in /home/XXXXXXXX/public_html/wp-includes/post.php on line 2996
Disable the plugin and the warning goes away.
Client isn't very happy with this product even though we paid for it.