First start at retiring Affiliate in favour of RTM

modules/checkout/classes/Model/Checkout.php

@@ -10,6 +10,11 @@
  * @license    http://dev.osbill.net/license.html
  */
 class Model_Checkout extends ORM_OSB {
+	protected $_has_many = array(
+		'account'=>array('through'=>'account_billing','foreign_key'=>'checkout_plugin_id'),
+		'payment'=>array(),
+	);
+
 	/**
 	 * Calcuale the fee for this checkout method
 	 *