When you go through and view source on the confirm page, look at the forms action:
<form action="/index.php" method="post" name="submitorder" id="submitorder">
it does not show the ?getpage=confirm querystring variable so the form is not posting to the confirm page.
In you page, change the forms action:
<form action="<?php echo $_SERVER["PHP_SELF"]; ?>" method="post" name="submitorder" id="submitorder">
to:
<form action="<?php echo $_SERVER["PHP_SELF"]; ?>?getpage=confirm" method="post" name="submitorder" id="submitorder">
and set the trigger for the Store order summary and local checkout behaviors to the button submit order being pressed.