Custom template with pagination

<?php
/*
Template Name: Comunicazioni
*/
?>
<?php get_header(); ?>

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


<?php
$temp = $wp_query;
$wp_query= null;
$wp_query = new WP_Query();
$wp_query->query('showposts=5&cat=9,10'.'&paged='.$paged);
?>
<?php while ($wp_query->have_posts()) : $wp_query->the_post(); ?>
                     <!-- Display the Title as a link to the Post's permalink. -->
 <h1 class="entry-title"><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h1>

                    <div class="entry-meta">
                        <?php twentyten_posted_on(); ?> <?php edit_post_link( __( 'Edit', 'twentyten' ), ' <span>(', ')</span>' ); ?>
                    </div><!-- .entry-meta -->

 <!-- Display the Post's Content in a div box. -->
 <div class="entry-content">
   <?php the_excerpt(); ?>
 </div><br />
<?php endwhile; ?>

<div class="navigation">
  <div class="alignleft"><?php previous_posts_link('&laquo; Previous') ?></div>
  <div class="alignright"><?php next_posts_link('More &raquo;') ?></div>
</div>
<?php $wp_query = null; $wp_query = $temp;?>

            </div><!-- #content -->
        </div><!-- #container -->
<?php get_sidebar(); ?>
<?php get_footer(); ?>