Trigger Problem

[Jose Nicodemos Maia Neto]

I tryed to create this trigger with PHPMyAdmin and MySQL Server (5.1.54-rel12.6-log).
And PHPMyAdmin tell me a success.
But when i list all the Trigger, there is nothing!
x.X

DELIMITER $$

DROP TRIGGER IF EXISTS auChecarPosicao;
CREATE TRIGGER auChecarPosicao
AFTER UPDATE ON com_orcamento_det
FOR EACH ROW
BEGIN
SET @_result = 0;

IF(OLD.orcd_situacao <> NEW.orcd_situacao AND NEW.orcd_situacao <> 6 AND NEW.orcd_situacao <> 5)
THEN
SELECT orcc_id_posicao INTO @pos
FROM com_orcamento_cab
WHERE orcc_id_orcamento = NEW.orcd_id_orc_cab
AND orcc_id_revisao = NEW.orcd_id_orc_cab_revisao;

IF(@pos = 1)
THEN
IF(NEW.orcd_situacao <> 1 OR NEW.orcd_situacao <> 11)
THEN
SET @_result = 3;
END IF;
ELSE IF (@pos = 17)
THEN
SET @_result = 3;

IF(NEW.orcd_situacao = 17)
THEN
SELECT count(orcd_situacao) INTO @res
FROM com_orcamento_det
WHERE orcd_id_orc_cab = NEW.orcd_id_orc_cab
AND orcd_id_orc_cab_revisao = NEW.orcd_id_orc_cab_revisao
AND orcd_situacao <> 17;

IF(@res = 0)
THEN
SET @_result = 17;
END IF;
END IF;
END IF;
END IF;

IF(@_result <> 0)
THEN
UPDATE com_orcamento_cab
SET orcc_id_posicao = @_result
WHERE orcc_id_orcamento = NEW.orcd_id_orc_cab
AND orcc_id_revisao = NEW.orcd_id_orc_cab_revisao;
END IF;
END $$ DELIMITER ;