Open registration.php and change this:
<?php
if ($WAGLOBAL_Email_Verification) {
?>
<p>Please follow the link below in order to verify this email address:</p>
<p>
<?php echo($WAGLOBAL_Root_URL); ?>users_confirm.php?ID=<?php echo($row_WAATKusers['UserID']); ?>&code=<?php echo($row_WAATKusers['UserVerificationCode']); ?>
</p>
<?php
} else {
?>
To this:
<?php
if ($WAGLOBAL_Email_Verification) {
?>
<p>Hi <?php echo($row_WAATKusers['UserFirstName']); ?> <?php echo($row_WAATKusers['UserLastName']); ?>,<br />
Thanks for registering at yoursite.com</p>
<p>Your registered email address: <?php echo($row_WAATKusers['UserEmail']); ?><br />
Your password: <?php echo($row_WAATKusers['UserPassword']); ?></p>
<p>Please follow the link below in order to verify this email address:</p>
<p>
<?php echo($WAGLOBAL_Root_URL); ?>users_confirm.php?ID=<?php echo($row_WAATKusers['UserID']); ?>&code=<?php echo($row_WAATKusers['UserVerificationCode']); ?>
</p>
<?php
} else {
?>
I haven't tested this but give it a try.