Loop in other template site

Hi,

I have a problem, i have rebuilt some template, and now i create new template sites.

My problem is that i can’t get the loop working, it’s returning only the child site that i what that loop to display in.

My question is, is there some limitations to the loop, and how to get it working.

here is the code in the template site

<?php
/*
Template Name: Czytelnia
*/
?>
<?php get_header(); ?>
<div class="latestor"> </div>

<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>

<div class="box" id="post-<?php the_ID(); ?>">

<div class="cover">
	<div class="title">
		<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></a></h2>

	</div>

	<div class="sentry">
		<?php $preview = get_post_meta($post->ID, 'preview', $single = true); ?>
		<img class="ethumb" src="<?php bloginfo('stylesheet_directory'); ?>/timthumb.php?src=<?php echo $preview; ?>&h=100&w=290&zc=1" alt=""/> 

		<?php the_excerpt(); ?> 

							<div class="clear"></div>
	</div>

</div>

<div class="sinfo">

<div class="rmore"><a href="<?php the_permalink() ?>" title="Permanent Link to <?php the_title(); ?>"> Wi?cej... </a></div>

</div>
</div>
		<?php endwhile; ?>
 <div id="navigation">
		<?php if(function_exists('wp_pagenavi')) { wp_pagenavi(); } ?>
</div>

	<?php else : ?>

		<h1 class="title">Not Found</h1>
		<p>Sorry, but you are looking for something that isn't here.</p>

	<?php endif; ?>

</div>

<?php get_sidebar(); ?>
<?php get_footer(); ?>

Thanks