Older entries page same as first page

Hi, I have some problems with older entries. I use following kind of loop to display posts from each category:

<?php if (have_posts()) : ?>

<?php
$category1 = new WP_Query();
$category1->query(‘category_name=category1’);?>

<?php while ($category1->have_posts()) : $category1->the_post(); ?>
…
<?php endwhile; ?>

Older entries (vanhemmat kuukumiset at my page) shows the same page as the index. Am I missing something?

My blog: http://rockynkuulumiset.net/
older entries: http://rockynkuulumiset.net/page/2/