Boom.. Sorted.. Issue for me was that fb-admin.js wasn’t loading as it was looking in the wrong path (In my WordPress implementation the wp-content folder a level back).
Issue resolved by amending all references to ‘plugins_url’ in fb-admin-menu.php:
Original:
plugins_url( ‘images/icon-bw.png’, __FILE__)
New:
WP_PLUGIN_URL . ‘/facebook/scripts/fb-admin.js’
I’m now able to click the ‘link to profile’ button and all worked perfectly.