Sub-Category List of Posts

I am trying to display a list of all the posts based on their sub-category. I have it partially working, but for the last “foreach” loop it displays the title (link) with post info (content, tags, categories) twice.

I have a category hierarchy of this:

Articles
   |-> Adults
   |-> Students
   |-> Kids

So, when you go to the “Articles” page there is a list like this:

Articles

* Adults
     * Post Title 1 for Adults
     * Post Title 2 for Adults
     * Post Title 3 for Adults
* Students
     * Post Title 1 for Students
     * Post Title 2 for Students
     * Post Title 3 for Students
* Kids
     * Post Title 1 for Kids
     * Post Title 2 for Kids
     * Post Title 3 for Kids

This is the code I am using:

<?php
	if (is_page( 'articles' )) {
		$args = array(
			'orderby' => 'id',
			'parent' => 9, // Articles
			'exclude' => 122 // Subcategory Year
		);

		$cats = get_categories( $args );
			foreach($cats as $cat) {
				$args=array(
					'orderby' => 'date',
 				    'order' => 'ASC',
					'showposts' => -1,
					'category__in' => array($cat->term_id),
					'caller_get_posts'=>1
				);
				$posts=query_posts($args);
				echo '<h2><a href="' . get_category_link( $cat->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $cat->name ) . '" ' . '>' . $cat->name.'</a></h2> ';
					foreach($posts as $post) {
					  if(have_posts()) : while(have_posts()) : the_post(); ?>
                      <a href="<?php the_permalink();?>"><?php the_title(); ?></a><br>
                      <?php endwhile; endif; ?>
					<?php } // foreach($posts
			} // foreach ($cats
	} // close if articles
?>