I really need a better "Thank you page"

I’d like to be able to change a block of text on the page that appears directly after a customer has successfully paid for an order.

  1. I’d like to offer additional services
  2. Offer links to affiliates
  3. Include Google Adwords “Goal” code.

    The current page doesnt give any indication that the payment was even accepted.

    How can I aceive this? Or shall I wait until the next release…?