See the discussion here: http://drupal.org/node/1761954#comment-6857202

Drupal 7: Custom redirect page after login via fboauth.module

Step 1, Print the FBCONNECT Button, anywhere you want

<?php
print fboauth_action_display();
?>
Step 2, Add this to your CUSTOM_MODULE

<?php
/**
* Implements hook_fboauth_actions_alter(): Customise redirect path
*
* @see hook_fboauth_actions_alter();
*/
function CUSTOM_MODULE_fboauth_actions_alter(&$actions) {
  $actions['connect']['callback'] = '_bh_user_fboauth_action_connect';
}

/**
* Callback for CUSTOM_MODULE_fboauth_actions_alter(): Customise redirect path
*
* @see hook_fboauth_actions_alter();
*/
function _CUSTOM_MODULE_fboauth_action_connect($app_id, $access_token) {

  // Call the default action first
  fboauth_action_connect($app_id, $access_token);

  global $user; //dpm($user);

  if($user->uid && $user->created == $user->login){
    drupal_goto("user/$user->uid/edit");
  }
  drupal_goto('<front>');
}
?>