Get FreeFree Social Accelerator .This thing you’re about to see in just a few short seconds makes any “push button” garbage piece of software you’ve ever come across look like child’s play.
when the plugin is installed ftp to its folder and edit the following file (remember to backup any changes you make!)
search for the following line (there are two instances)
$loginUrl = $facebook->getLoginUrl(array('scope'=>'manage_pages,publish_stream'));
and replace it with this line (for both)
$loginUrl = $facebook->getLoginUrl(array('scope'=>'manage_pages,publish_stream,publish_actions'));
create a new app on Facebook. Link it to the plugin as described in the setup guide and grant it permissions again. This time there will be an extra permission box to ‘ok’.
Demo & Source