Unable to auto connect to facebook fanpage when posts

Hi Support, its been great knowing this simple facebook connect plugin. I am trying to connect it to my fanpage but it seem any new posts i do will only posts to my personal facebook page but not to my facebook fanpage.
I am trying to insert the url on the setting, but whenever save the setting, the url for the fanpages will be disappear. May kindly please advice how i can go about this so that any new posts can auto posts it to my facebook fanpage? Hope to hear from you soon.

http://wordpress.org/extend/plugins/simple-facebook-connect/