Clases y funciones para conseugir forma de pago en Magento

$pm = $this->getQuote()->getPayment()

$pm_code = $this->getQuote()->getPayment()->getMethodInstance()->getCode();

$pm_title = $this->getQuote()->getPayment()->getMethodInstance()->getTitle();

$pm_name = $this->getQuote()->getPayment()->getMethodInstance()->getName();

or

$pm_code = Mage::getSingleton('checkout/session')->getQuote()->getPayment()->getMethodInstance()->getCode();