Index: branches/version-2_13-dev/data/class/pages/admin/order/LC_Page_Admin_Order_Edit.php
===================================================================
--- branches/version-2_13-dev/data/class/pages/admin/order/LC_Page_Admin_Order_Edit.php	(revision 23477)
+++ branches/version-2_13-dev/data/class/pages/admin/order/LC_Page_Admin_Order_Edit.php	(revision 23498)
@@ -156,4 +156,5 @@
             $this->setOrderToFormParam($objFormParam, $order_id);
             $this->tpl_subno = 'index';
+            $arrValuesBefore['deliv_id'] = $objFormParam->getValue('deliv_id');
             $arrValuesBefore['payment_id'] = $objFormParam->getValue('payment_id');
             $arrValuesBefore['payment_method'] = $objFormParam->getValue('payment_method');
@@ -161,4 +162,5 @@
             $this->tpl_subno = 'add';
             $this->tpl_mode = 'add';
+            $arrValuesBefore['deliv_id'] = NULL;
             $arrValuesBefore['payment_id'] = NULL;
             $arrValuesBefore['payment_method'] = NULL;
@@ -316,4 +318,11 @@
         $this->arrDelivTime   = SC_Helper_Delivery_Ex::getDelivTime($objFormParam->getValue('deliv_id'));
         $this->tpl_onload .= $this->getAnchorKey($objFormParam);
+        if ($arrValuesBefore['deliv_id']) {
+            // 受注当時の配送業者名はdtb_orderにないので、
+            // 削除済みの配送業者も含めて情報を取得。
+            $objDelivery = new SC_Helper_Delivery_Ex();
+            $arrDelivery = $objDelivery->get($arrValuesBefore['deliv_id'], true);
+            $this->arrDeliv[$arrValuesBefore['deliv_id']] = $arrDelivery['name'];
+        }
         if ($arrValuesBefore['payment_id'])
             $this->arrPayment[$arrValuesBefore['payment_id']] = $arrValuesBefore['payment_method'];