Print Button at end of checkout

[sales@.....com]

I'd like to add a print button at the end of a successful checkout. What file(s) do I need to edit to make this happen?
I'd also like to add some of the other fields to this page and would like to know what page is responsible for this function?
Thanks in advance

[admin]

hello, this is only possible if you redirect your customers to order details page. this should be handled by your theme, or you can get 3rd party extensions such as virtuemart email manager and artio invoice. OPC does not style or modify the order details page yet.

best regards,
stan