you had the following code for validation:
<?php
if (isset($_POST["UserUpdate_submit"])) {
$WAFV_Redirect = "".(htmlentities($_SERVER["PHP_SELF"], ENT_QUOTES)) ."?invalid=true";
$_SESSION['WAVT_userupdate_Errors'] = "";
if ($WAFV_Redirect == "") {
$WAFV_Redirect = $_SERVER["PHP_SELF"];
}
$WAFV_Errors = "";
$WAFV_Errors .= WAValidateRQ((isset($_POST["User_Update_group_Student_ID"])?$_POST["User_Update_group_Student_ID"]:"") . "",true,1);
$WAFV_Errors .= WAValidateLE((isset($_POST["User_Update_group_Confirm"])?$_POST["User_Update_group_Confirm"]:"") . "",(isset($_POST["User_Update_group_Confirm"])?$_POST["User_Update_group_Confirm"]:"") . "",true,2);
if ($WAFV_Errors != "") {
PostResult($WAFV_Redirect,$WAFV_Errors,"userupdate");
}
}
?>
the 2 elements being validated where among the ones you removed.
i commented that code block to fix the problem