on the user-confirm.php page, the run time variable for the paramrandomString parameter in the rsVerify recordset is set to:
$_GET['ri_SubscriberRandomString']
the variable in the email is named randomString
randomString=z53mj2s4tx
the run time value should be set to:
$_GET['randomString']
to troubleshoot the user update page, add the following code in the body and post back the results:
<?php var_dump($_SESSION); echo("<br />".$query_SecurityAssistriSubscribers); ?>