Magento – Editing Magento Admin and User order detail page

The template file for the "name" column in the sales backend is app/design/adminhtml/default/sales/items/column/name.phtml

Working with that file, you will be able to what you are after.

To avoid core changes, i'd suggest creating a module with a layout update

    <adminhtml_sales_order_view> 
        <reference name="order_items"> 
            <action method="addColumnRender">
                <column>name</column>
                <block>adminhtml/sales_items_column_name</block>
                <template>module_name/sales/items/column/name.phtml</template>
            </action>
            <action method="addColumnRender">
                <column>name</column>
                <block>adminhtml/sales_items_column_name_grouped</block>
                <template>module_name/sales/items/column/name.phtml</template>
                <type>grouped</type>
            </action>
        </reference> 
    </adminhtml_sales_order_view>

You can also attach this override to other adminhtml_sales layouts, using the same reference/action methods above...

<adminhtml_sales_order_invoice_new /> <adminhtml_sales_order_invoice_updateqty /> <adminhtml_sales_order_invoice_view /> (use invoice_items reference for this layout) <adminhtml_sales_order_shipment_new /> <adminhtml_sales_order_shipment_view /> (use shipment_items reference for this layout) <adminhtml_sales_order_creditmemo_new /> <adminhtml_sales_order_creditmemo_updateqty /> <adminhtml_sales_order_creditmemo_view /> (use creditmemo_items reference for this layout)

Hope that helps

When redirecting * means current, so with $this->_redirect('*/*'); you are targeting the current module, current controller and index action. As I see a closing ?> in your controller (which by the way you should exclude, see here) I'm going to assume you have no more actions in that controller, including the index action, therefore the redirect fails in a 404 because the action does not actually exist.

You need to redirect to the adminhtml module, sales_order controller and view action instead so use the following:

$this->_redirect('adminhtml/sales_order/view', array('order_id' => $someorderid));