Hello,
But the problem is that I want the order to be listed as confirmed and payed.
Order can only have one status, and it's the status that you have set through the "Payment confirmed order status" option via "Hikashop->System->Configuration->Main".
In your case the the solution can be to create a custom status "Confirmed - Payed" and set it on the "Payment confirmed order status" option, OR directly edit the code of the files of the "validate free orders" plugin.
Also, note that this plugin will only change the status of
free orders.