global $wpdb;
        $album = $wpdb->get_var('SELECT sortorder FROM wp_ngg_album WHERE id =' . $album_id);
        $galleries = unserialize($album);

        $gallery_ids = join(',',$galleries);

        $users = $wpdb->get_results("SELECT DISTINCT wp_users.display_name, wp_users.ID
                                     FROM wp_ngg_gallery
                                     INNER JOIN wp_users ON wp_ngg_gallery.author = wp_users.ID
                                     WHERE wp_ngg_gallery.gid IN ($gallery_ids)");

        $count = $wpdb->get_var("SELECT count(1)
                                 FROM wp_ngg_gallery
                                 INNER JOIN wp_users ON wp_ngg_gallery.author = wp_users.ID
                                 WHERE wp_ngg_gallery.gid IN ($gallery_ids)");
        $i = 0;
        echo $count;
        foreach($users as $user) {
            $i++;
            echo '<a href="#' . $user->ID . '">' . $user->display_name . '</a>' . (($i !== $count) ? ', ' : NULL);
        })