Hi,
The addresses of the users are not loaded there. So before displaying something of the addresses you first need to load it from the database.
Also, a user can have several billing addresses and several shipping addresses, with a default address for each.
For example, you could add:
<th class="title">kdnr</th>
and
<td><?php
$class = hikashop_get('class.address');
$billing_addresses = $class->loadUserAddresses($row->user_id, 'billing');
$main_billing_address = reset($billing_addresses);
echo $main_billing_address->kdnr;
?></td>