1) The error reporting code is not quite correct, it should be:
<?php
error_reporting(E_ALL);
ini_set('display_errors','on');
?>
2) your page is missing the validation toolkit include line. Add the following just after the error reporting code:
<?php require_once("WA_ValidationToolkit/WAVT_Scripts_PHP.php"); ?>
<?php require_once("WA_ValidationToolkit/WAVT_ValidatedForm_PHP.php"); ?>