previous_posts_link next_posts_link problem

<?php get_header(); ?>

<div class="maincontent">
		<div class="contentleft">

			<?php if (have_posts()) : ?>
<?php query_posts('posts_per_page=3');
$do_not_duplicate = array();
while (have_posts()) : the_post();
$do_not_duplicate[] = $post->ID;
?>

			<div class="post">
				<div class="posttitle"><h1><a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></h1></div>
				<div class="datebox"><p><span><?php the_time('F j, Y') ?></span> | <?php comments_popup_link('No Comments', '1 Comments', '% Comments'); ?></p></div>
				<div class="postcontent">
					<?php the_content('Read the rest of this entry &raquo;'); ?>
					<iframe src="http://www.facebook.com/plugins/like.php?href=<?php echo urlencode(get_permalink($post->ID)); ?>&layout=standard&show-faces=true&width=500&action=like&colorscheme=light" scrolling="no" frameborder="0" allowTransparency="true" style="border:none; overflow:hidden; width:500px; height:60px"></iframe>
					<div class="commentslink"><p><?php comments_popup_link('No Comments', '1 Comments', '% Comments'); ?> | <a href="<?php the_permalink() ?>">Leave a comment</a></p></div>

					<div class="tagbox">
						<p>Tagged As | <?php the_tags(__(''), ', ', ''); ?></p>
					</div>
				</div>
			</div>
			<?php endwhile; ?>
			<?php else : ?>
			<h2 class="center">Not Found</h2>
			<p class="center">Sorry, but you are looking for something that isn't here.</p>
		   <?php endif; ?>

<div id="bottomposts">
 <?php if (have_posts()) : ?>
<?php rewind_posts(); ?>
<?php 

query_posts('posts_per_page=11');

while (have_posts()) : the_post(); update_post_caches($posts);
if ( !in_array( $post->ID, $do_not_duplicate ) ):
?>
<div class="postovi">
 <h2><a href="<?php the_permalink(); ?>" id="post-<?php the_ID(); ?>"><?php the_title(); ?></a></h2>
<?php echo excerpt(55); ?><p></p>
<a href="<?php the_permalink(); ?>" id="post-<?php the_ID(); ?>">Read more...</a>
</div>
<?php endif; ?>
<?php endwhile; ?>
			<?php else : ?>
			<h2 class="center">Not Found</h2>
			<p class="center">Sorry, but you are looking for something that isn't here.</p>
		   <?php endif; ?>
</div>

<div class="pagination">
				<div class="previous"><?php previous_posts_link('Previous Entries') ?></div>
				<div class="next"><?php next_posts_link('Next Entries') ?></div>
			</div>
		</div>
		<div class="contentright">
			<?php get_sidebar(); ?>
		</div>
	</div>

<?php get_footer(); ?>

I am having problem with navigation, i use 2 loops in 1st i display 3 recent posts , and in the next one i display 8 short text posts
but my page navigation doesnt work, allways showing same posts