previous_posts_link and index.php Problem

First of all, I’m really sorry if there’s already a topic about this same problem. I just couldn’t find one.

The problem:

I’m having a frontpage which consists of two columns. First one shows three latest posts from a category called “yleinen” and the second one shows three latest posts from “kritiikki”. Well everything works fine besides that previous_posts_link doesn’t work.

Url changes to /page/2/ but nothing happens to the actual posts.

Here’s my code from index.php

<?php
get_header(); ?>

	<div id="content" role="main">

            <div class="left">
<?php query_posts('category_name=yleinen&posts_per_page=3'); ?>
<?php if (have_posts()) : ?>
		<?php while (have_posts()) : the_post(); ?>
<div class="box-left">
<div class="aika"><?php the_time('d.m.Y') ?></div>
<div class="title"><?php the_title(); ?></div>
<?php the_content('more ?'); ?></div>
<?php endwhile; ?>
			</div>

                        <div class="right">
<?php query_posts('category_name=kritiikki&posts_per_page=3'); ?>
		<?php while (have_posts()) : the_post(); ?>
<div class="box-right">
<div class="aika"><?php the_time('d.m.Y') ?></div>
<div class="title"><?php the_title(); ?></div>
<div class="floatright"><?php the_post_thumbnail(); ?></div>
<?php the_excerpt(); ?>
</div>

<?php endwhile; ?>

    <div class="navigation">
			<?php next_posts_link(__('? Older Entries')) ?>
			<?php previous_posts_link(__('Newer Entries ?')) ?>
		</div>

<?php endif; ?>
			</div>

	</div>

<?php get_footer(); ?>