pootzko

well, this one did the trick:
http://wordpress.org/extend/plugins/comments-notifier/

here’s the answer for anyone that might need it…
ngg-db.php, line 324 (nextgen 1.6.1)

$album->sortorder = serialize( $wpdb->get_col(“SELECT gid FROM $wpdb->nggallery ORDER BY gid DESC”) );

works after I added “ORDER BY gid DESC”