In your tpl_account_history_info_default.php file, you have the following. Add the code shown:

Code:
    <tr>        <td class="accountQuantityDisplay"><?php echo  $order->products[$i]['qty'] . QUANTITY_SUFFIX; ?></td>
        <td class="accountProductDisplay"><?php echo  $order->products[$i]['name'] . '  (' . $order->products[$i]['model'] . ')';