WordPress 3.0 Subcategory listing with Post Title only

I could be completely wrong about what you are trying to achieve, but maybe this will help. You should use get_categories so that you can retrieve an array of sub-categories.

$children_cats = get_categories('child_of=10&orderby=ID&order=ASC');

The order attributes make it so that you will get a list of the categories ordered by the sequence in which you created them.

With the new array, use it to make new loops:

foreach($children_cats as $cat){

wp_list_categories('title_li=&include='.$cat); // Show only the current category name first

$sub_query = new WP_Query('category__in='.$cat); // Add any other arguments as needed
echo('<ul>');
while ($sub_query->have_posts()) : $sub_query->the_post(); ?>

<li id="post-<?php the_ID(); ?>"><a>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a>

<?php endwhile;
echo('</ul>
');
$sub_query = null;

} // End of foreach loop

The loop query uses category__in so that ONLY that category’s posts are listed, rather than that and it’s children (which would then duplicate posts in your listing).

Good luck

J