I have modified the field on tpl_account_history_info_default.php and changed Special Instructions to Insert PO. When a customer is in their account and they select order history (view all orders) they can currently see the following fields :
Order Status
Order Date
Shipped To
Products
Order Cost

When you select more information on the order it will show the comments section were they enter in the PO#. I would like this field to also show on the My Order History (show all orders) page.

PLease help !!!!!