$pagetree= '';
$selected = 0;
echo '<table border="0" cellpadding="0" cellspacing="0">';
for ($i=0; $i<sizeof($this->Pages); $i++){
echo '<tr><td>';
$pagetree.= ' '.str_repeat(' ',$this->Pages[$i]->level-1).'<a href="'.$this->Pages[$i]->url.'">'.$this->Pages[$i]->title.'</a>';
echo '</td></tr>';
}
echo '</table>';veya tablo içine almayıp direk <br /> xhtml kodu ile alt satıra atlatabilirsin.
$pagetree= '';
$selected = 0;
for ($i=0; $i<sizeof($this->Pages); $i++){
$pagetree.= ' '.str_repeat(' ',$this->Pages[$i]->level-1).'<a href="'.$this->Pages[$i]->url.'">'.$this->Pages[$i]->title.'</a><br />';
}