Cannot order subpages list, why?

[SalamandersPL]

Hi. Relatively small problem.

I can not order the subpages i want to echo with the loop:

PHP Code:

   <?php
      $children=getChildren('term-conditions');
      $ordered = subval_sort($children, 'menuOrder');
    ?>
    <div class="parent">
      <?php foreach ($ordered as $child){?>
      <h2><?php getPageField($child, 'title'); ?></h2>
      <?php }; ?>
    </div> 


The $ordered variable do nothing. Why?