Thanks for the post!
But like I said I am pretty newb @ php but is this what you wanted me to try?
<?php
if($post->post_parent)
$children = wp_list_pages("title_li=".$post->title ."&child_of=".$post->post_parent."&echo=0");
else
$children = wp_list_pages("title_li=".$post->title ."&child_of=".$post->ID."&echo=0");
if ($children) { ?>
<ul>
<?php echo $children; ?>
</ul>
<?php } ?>
I added that code you posted in after wp_list_pages(. It doesn’t appear to be working, though.