list wordpress posts from current category only
Finally solved it with this code from here: http://www.snilesh.com/resources/wordpress/wordpress-recent-posts-from-current-same-category/
Modified it to include current page and list ascending
<ul id="catnav"><?phpglobal $post;$category = get_the_category($post->ID);$category = $category[0]->cat_ID;$myposts = get_posts(array('numberposts' => 5, 'offset' => 0, 'category__in' => array($category), 'post_status'=>'publish', 'order'=>'ASC' ));foreach($myposts as $post) :setup_postdata($post);?><li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li><?php endforeach; ?><?php wp_reset_query(); ?><li><a href="?p=46">Why Us?</a></li></ul>