Well, the way to change that would be for you/your developers to write your own confirmation script (because without a script sending e-mails with the data from filled out forms would be impossible) and change
Code:
<form action="http://www.link-assistant.com/submit/process_requests.php" method="post" name="submit_form" onsubmit="return submitForm()">
to
Code:
<form action="http://www.your-server/your-script.php" method="post" name="submit_form" onsubmit="return submitForm()">