Adding pagination to modified loop

Hi all.

I’m trying to add the following pagination to my theme.

My homepage is set to only display posts from one category:

<?php query_posts('cat=-1'); ?>
<?php if(have_posts()):?><?php while(have_posts()):the_post();?>
<div class="post-row">
	<?php
	if ( function_exists( 'add_theme_support' ) && has_post_thumbnail()){
	the_post_thumbnail(array(170, 80));
	}
	?>
<div class="post-title"><a href="<?php the_permalink();?>"><?php the_title();?></a></div>
<div class="post-content excerpt">
	<?php the_excerpt();?>

The resulting pagination shows the same posts on each page rather than older posts. Any idea how I can fix this?

Thanks.