pantsonhead

Currently WordPress does not provide the ability to change the post that an item in the Media Library is attached to after it has been set. This plugin allows editors to change the parent post to another post.

Change Media Parent

Allows editors to change the parent post of an attachment after it has been set.

This plugin is very simple and straightforward. Just enter ?{list}? on each parent page or post where you want the children listed. Put it anywhere in your content and that is where it will show.
Then in your css..
.subpage-style { Put your styles here };
Easy as pie!

Andy's List Subpages Plugin

Nice and simple plugin that lists the children of a certain page or post in…

Change Media Parent vs Andy's List Subpages Plugin