baga

Any suggestion regarding my last question?

After reading this topic: http://ww.wp.xz.cn/support/topic/320566 I was able to solve the problem using this code:

<?php
$parent = $post->ID;
$args = array(
    'post_type' => 'page',
    'post_status' => 'publish',
    'posts_per_page' => -1,
    'caller_get_posts'=> 1,
    'child_of' => $parent
);
$pages = get_pages($args);
shuffle($pages);
if ($pages) {
  foreach($pages as $post) {
    setup_postdata($post);
    if ($post->post_parent != $parent ) { ?>
<p><?php echo get_post_meta($post->ID, 'URL', true); ?></p>
<?php
}
}
}
wp_reset_query();
?>

Any idea on how to implement a custom field search which makes use of checkboxes?

Thanks MichaelH!

I added the line:
<p><?php echo get_post_meta($post->ID, 'url', true); ?></p>
and it works perfectly.

What should I add if I wanted to display only urls or other cutom fields from subpages of the current page?