MikeZ on "get_children for images in a single post returning an empty array"

Hi,

I'm trying to create a list of images in my single post page. I'm started out with the following inside the loop which I thought would have worked..

<?php $images =& get_children( 'post_type=attachment&post_mime_type=image&post_parent=' . get_the_ID() ); ?>

<?php print_r($images)?>

This is returning an empty array. It doesn't seem to be picking up the image attachments.

Any help would be much appreciated.