Listing pages (advanced)

Hello,

I was wondering how I could list pages associated with a parent ID. I know there are ways to do it, right now I do it so that pages are only listed for a specific parent ID but the child pages for the child pages parent ID arent shown which is what I want do to.

[Example]

(Example one)

About
-> My Life
-> My family
-> My job
-> My Hobbies

Now when somone goes to about it does show all the child pages, however, I want to show the child pages on the child pages as well from the child pages parent id.

So if they go to about -> my life they will still see all the other child pages associated with the parent page about. Now I also still only to want it to show the navigation if there are child pages for a page. otherwise I dont want the Navigation to even show up.

is there a way I can do what I am asking?

Thanks for the help!

[The code i have]
<?PHP if(wp_list_pages(“child_of=”.$post->ID.”&echo=0″)) { ?>
<div class=”plugin”>
<h1>NAVIGATION</h1>
<div class=”the-links”>

<?PHP wp_list_pages(“title_li=&child_of=”.$post->ID); ?>

</div>
</div>
<? } ?>

[Live example of what I have]
http://www.ghettopixel.com (click on about and you will see)