I tried on my other sites and it does WORK.
Are you sure the plugin is still activated on your site?
I’m going to reply to your other “double post” to get this sorted out.
Kindly reply on your other post:
http://wordpress.org/support/topic/not-working-at-all-url-of-post-i-need-thumbnail-of-video
I hope to get your mind changed about that “1 star” review you are giving. The issue might only be because of your server.
