Loop displaying different posts

This is the php code of my index page

<?php query_posts('category_id=6&showposts=1'); ?>
<?php $posts = get_posts('numberposts=1&offset=0'); foreach ($posts as $post) : start_wp(); ?>
<?php static $count1 = 0; if ($count1 == "1") { break; } else { ?>

<a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a></h2>
<?php echo get_the_image(array('Thumbnail','My Thumbnail'),'thumbnail'); ?>
<?php the_excerpt(); ?>

<?php $count1++; } ?>
<?php endforeach; ?>
<?php query_posts('category_id=6&showposts=5'); ?>
<?php $posts = get_posts('numberposts=5&offset=2'); foreach ($posts as $post) : start_wp(); ?>
<?php static $count2 = 0; if ($count2 == "5") { break; } else { ?>

<?php echo get_the_image(array('Thumbnail','My Thumbnail'),'thumbnail'); ?>
<a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a>

<?php $count2++; } ?>
<?php endforeach; ?>

 <?php query_posts($query_string . '&cat=-6'); ?>
 <?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

			  <?php the_category(', ') ?>
			   <a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a>
			   <?php echo get_the_image(array('Thumbnail','My Thumbnail'),'thumbnail'); ?>
              <?php the_excerpt(); ?> 

			   Objavljeno: <?php the_time('d.m.Y, G:i'); ?>
			   <a href="<?php the_permalink() ?>" title="<?php the_title(); ?>">Ceo tekst &raquo;</a>
			   <a href="<?php the_permalink() ?>#commenting" title="Komentari"><?php comments_number('0','1','%'); ?></a>

			   <"clear1">
               <!-- do stuff ... -->
               <?php endwhile; ?>
<?php endif; ?>

This is the part of code that is causing problems

<?php query_posts('category_id=6&showposts=1'); ?>
<?php $posts = get_posts('numberposts=1&offset=0'); foreach ($posts as $post) : start_wp(); ?>
<?php static $count1 = 0; if ($count1 == "1") { break; } else { ?>

<a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a></h2>
<?php echo get_the_image(array('Thumbnail','My Thumbnail'),'thumbnail'); ?>
<?php the_excerpt(); ?>

<?php $count1++; } ?>
<?php endforeach; ?>
<?php query_posts('category_id=6&showposts=5'); ?>
<?php $posts = get_posts('numberposts=5&offset=2'); foreach ($posts as $post) : start_wp(); ?>
<?php static $count2 = 0; if ($count2 == "5") { break; } else { ?>

<?php echo get_the_image(array('Thumbnail','My Thumbnail'),'thumbnail'); ?>
<a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a>

<?php $count2++; } ?>
<?php endforeach; ?>

On localhost it works fine. It’s shows 1 and 5 posts from category with id 6.

When i transfered this theme to my host and activated it, it shows posts from category with id 11.

How is that possible?