$cats = get_the_category();
	$cat_id = $cat_id[0];

	$category_posts = new WP_Query('cat=' . $cat_id->cat_ID);
	$all_tags = array();
	while ( $category_posts->have_posts() ) : $category_posts->the_post();
		$tags = wp_get_post_terms(get_the_ID(), 'post_tag');

		foreach($tags as $tag)
			$all_tags[$tag->term_id][] = get_the_ID();

	endwhile;

	foreach($all_tags as $key => $tag) {

		$term = get_term($key, 'post_tag');
		echo $term->name . '<BR>';
		foreach($tag as $post_id) {
			echo '<a href="' . get_permalink($post_id) . '">'. get_the_title($post_id) . "</a><BR>";
		}

	}