[Solved] Invoice custom date field in order - help

[silencl]

When I change order status after receiving order and get invoice created, I get this in the invoice field.

Invoice
Invoice #No111111
Invoice created: 2011-04-15 11:10:27

How can I create custom field in the Order, which will let me to add date, when invoice was paid for?
Something like this:

Invoice
Invoice #No111111
Invoice created: 2011-04-15 11:10:27
Invoice paid for: 2011-04-19

//leaving private message in order with this info is not an option, as I need to be able to extract the field
"invoice paid for" into a cvs export later on//

[silencl]

How to do it then?

Well, you have to do some changes to "AdminOrders.php" .
But a skillful programmer had made it happen for me ....