How to add a custom block on sales order's create page inside admin panel?

Question

I want to add a custom block on sales order's create page under admin section.

Here is my code:

<adminhtml_sales_order_create_index>

    <reference name="sidebar">
        <block type="adminhtml/template" name="verification" template="magentomod/ageverification/sales/order/create/comment.phtml"/>
    </reference>

</adminhtml_sales_order_create_index>
<adminhtml_sales_order_create_load_block_data>

    <reference name="sidebar">
        <block type="adminhtml/template" name="verification" template="magentomod/ageverification/sales/order/create/comment.phtml"/>
    </reference>

</adminhtml_sales_order_create_load_block_data>

It's working fine but if I change the reference from sidebar to content or data block, it stops working. I want to add this block within content block.

How can I do this?

Answer 1

What else is in the content block under those layout handles? Have you ensured that you have a unique name set? Are you certain that your template path is correct, and that the template exists there?

Can you post the code that is supposed to add this to the content block?