this comment on the page:
<!--<?php if(WA_Auth_RulePasses("Validated form")){ // Begin Show Region ?>
<p>Invalid information, please check your entries and try again.
--> <?php
since the closing comment tag is in an if statement, it is never written to the page rendered in the browser and is causing the entire page to be commented.
remove that comment code:
<?php if(WA_Auth_RulePasses("Validated form")){ // Begin Show Region ?>
<p>Invalid information, please check your entries and try again.
<?php
