You should only be getting to the success page if you are successful in the action taken on the confirm page. The only other time that you get to the success page is if you have it set to test mode in the admin area under the settings.
Do you know if an Authorization that has been processed by PayPal will show up in your profile? If it should show up and you have made the changes noted and get to the success page without anything being listed on PayPal it would seem that you are set to test mode.