Navigation for pages template

Hi there!
I am working on a website, that uses pages as navigation, e.g. a kind of CMS.
I have managed everything, except the display of the pages in my template.
Basically, the template works similar to the index.php, but as it is a page, I had to do a trick to get the blog postings into that page template.
This is why I do not use The Loop and I assume that the normal navigation does not work because of that.
Here is the code for the template, perhaps anyone knows how to implement a navigation similar to the pagebar plugin?

<?php
/*
Template Name: Aktuelles Template
*/
?>
<?php
	get_header();
	if (!get_option('mandigo_nosidebars') && get_option('mandigo_sidebar1_left')) include (TEMPLATEPATH . '/sidebar.php');
	if (!get_option('mandigo_nosidebars') && get_option('mandigo_1024') && get_option('mandigo_3columns') && get_option('mandigo_sidebar2_left')) {
		include (TEMPLATEPATH . '/sidebar2.php');
	}
?>
	<td id="content" class="narrowcolumn">

 <?php $lastposts = get_posts('');

		foreach($lastposts as $post) :  setup_postdata($post);    ?>

    	<div class="post" id="post-<?php the_ID(); ?>">
                                <div class="postinfo">
			        	<div class="calborder">
			        	<div class="cal">
                <span class="cald<?php echo (get_option('mandigo_dates') ? ' cald2' : '') ?>"><?php the_time((get_option('mandigo_dates') ? 'M' : 'd')) ?></span>
                                                <span class="calm"><?php the_time((get_option('mandigo_dates') ? 'd' : 'm')) ?></span>
                                                <span class="caly"><?php the_time('Y') ?></span>
                                        </div>
                                        </div>
                                        <h2><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php printf(__('Permanent Link to %s','mandigo'),the_title('','',false)); ?>"><?php the_title(); ?></a></h2>
                                        <small><?php printf(__('Posted by: %s in %s','mandigo'),mandigo_author_link(get_the_author_ID(),get_the_author()),get_the_category_list(', ')) ?></small>
                                </div>

				<div class="entry">
					<?php the_content(__('Read the rest of this entry','mandigo') .' &raquo;'); ?>
				</div>

				<p class="postmetadata"><img src="<?php echo get_bloginfo('stylesheet_directory'); ?>/images/<?php echo get_option('mandigo_scheme'); ?>/comments.gif" alt="Comments" /> <?php comments_popup_link('No Comments »', '1 Comment »', '% Comments »', '', ''); ?>
				<?php global $wpdb, $table_prefix, $wp_query;
						$post_id = $wp_query->post->ID;
						$num_comments = $wpdb->get_var("
  					SELECT COUNT(1) FROM {$table_prefix}comments  WHERE comment_post_ID = " . $post_id . "  AND comment_approved = '1' ");
						if($num_comments == "0"){?>
							Keine Kommentare
						<?php }
						else if($num_comments == "1"){ ?>
							<a href="<?php the_permalink() ?>#comments" title=" <?php printf(__('Kommentar zu %s','mandigo'),the_title('','',false)); ?>"><?php echo $num_comments ?> Kommentar &raquo;</a>
						<?php }
						else { ?>
							 <a href="<?php the_permalink() ?>#comments" title=" <?php printf(__('Kommentar zu %s','mandigo'),the_title('','',false)); ?>"><?php echo $num_comments ?> Kommentare &raquo;</a>
						<?php } ?>
			 </p>
			</div>
		<?php endforeach; ?>

		<div class="navigation">
			<div class="alignleft"><?php next_posts_link('&laquo; Vorherige Eintr&auml;ge') ?></div>
			<div class="alignright"><?php previous_posts_link('N&auml;chste Eintr&auml;ge &raquo;') ?></div>
		</div>

	</td>
<?php
	if (!get_option('mandigo_nosidebars') && !get_option('mandigo_sidebar1_left')) include (TEMPLATEPATH . '/sidebar.php');
	if (!get_option('mandigo_nosidebars') && get_option('mandigo_1024') && get_option('mandigo_3columns') && !get_option('mandigo_sidebar2_left')) {
		include (TEMPLATEPATH . '/sidebar2.php');
	}

	get_footer();
?>

Sorry for posting the whole code, but there’s no option to attach a file and I guess without the full code, something maybe missed.