Spanish Translation (added)
 

$phrase['sign_guestbook'] = "Firmar el libro de visitas";
$phrase['view_guestbook'] = "Ver el libro de visitas";
$phrase['return_to'] = "Regresar a";
$phrase['name'] = "Nombre";
$phrase['date'] = "Fecha";
$phrase['email'] = "E-mail";
$phrase['location'] = "Ubicación";
$phrase['message'] = "Mensaje";
$phrase['private_message'] = "Mensaje Privado";
$phrase['added'] = "agregado";
$phrase['page'] = "Pagina";
$phrase['of'] = "de";
$phrase['first'] = "Primero";
$phrase['next'] = "Siguiente";
$phrase['previous'] = "Anterior";
$phrase['last'] = "Ultimo";
$phrase['private'] = "Privado";
$phrase['characters_left'] = "Caracteres disponibles";
$phrase['smilies'] = "Smilies";
$phrase['verification_code'] = "Código de Verificación";
$phrase['post_message'] = "Publicar Mensaje";
$phrase['preview'] = "Vista Previa";
$phrase['js_required_fields'] = "Debes llenar los siguientes campos";
$phrase['no_messages'] = "No hay mensajes en este libro de visitas.";

translation by David Arcila