try delet this lines staff/(tpl."customname".detail.inc.php):

<th nowrap='true'><?php echo $hm->Zb('ob:rs:def:contactos_id'); ?>
<?php echo RSTR_CONTACTOS_ID; ?></th>
<th><?php include( 'include/tpl.sr.selrec_header.inc.php' ); ?></th>
<th><?php include( 'include/tpl.sr.edit_btn_header.inc.php' ); ?></th>
<th><?php echo RSTR_ACTIVE; ?></th>

-------------------------------------------------------

<td style='text-align:right;'><?php echo $hm->Zb('rs:def:contactos_id'); ?></td>
<?php include( 'include/tpl.sr.id_param.inc.php' ); ?>
<?php include( 'include/tpl.sr.selrec.inc.php' ); ?>
<?php include( 'include/tpl.sr.edit_btn.inc.php' ); ?>
<td style='text-align:center;'><?php echo $hm->Zb('rs:def:active'); ?></td>