Since we've updated the Facebook Pages connection to use Facebook Connect, you are no longer required to go through hops and jumps to get this working.

All you need to do is to follow the directions for adding Facebook over here: Adding Social Networks.

Once you have Facebook added, your pages will automatically show on the Facebook settings page.  Click the pages you want to post messages to and click "Save."  If you haven't given Ping.fm permission to post to a specific page, you will be asked before you can save your settings.

See Also: Adding Social Networks