ackdata

Solucionado assim:

<?php query_posts('category_name='.$categ.'&showposts=-1'); ?>
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<li><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a></li>
<?php endwhile; ?>
<?php endif; ?>