Create payment info block on success page in magento
<?php
$order = Mage::getSingleton('sales/order');
// 1 - Get payment method instance
$paymentMethod = $order->getPayment()->getMethodInstance();
?>
<!-- ... -->
<!-- Create block of payment info. -->
<?php echo $this->getLayout()->createBlock($paymentMethod->getInfoBlockType())->setData('info', $order->getPayment())->toHtml() ?>
<!-- ... -->