tommyleyland on "Show All Category Posts"

If you look here: http://freelance.tstwebdesign.co.uk/news/ only one post is showing but I'm looking for all the posts in that category to show up.

The PHP I'm using:

<?php if ( have_posts() ) : ?>

			<?php /* The loop */ ?>

			<?php while ( have_posts() ) : the_post(); ?>
				<?php get_template_part( 'content', get_post_format() ); ?>
			<?php endwhile; ?>

			<div>
    <?php the_post_thumbnail( 'category-thumb' ); ?>
		<div class="postdate"><?php the_date(); ?></div>
		<div class="posttitle"><a href="<?php the_permalink() ?>"><h3><?php the_title(); ?></h3></a></div>
		<?php the_excerpt(); ?>
	</div>

		<?php else : ?>
			<?php get_template_part( 'content', 'none' ); ?>
		<?php endif; ?>

Any help appreciated!