older post link on blog page not working

Hey guys need help. . . still trying to figure out why the older post link on my blog page in my website isnt working. . .http://makeyourtheme.com/blog
any ideas? any help would be much appreciated. . .
I tried using this codes still theres no luck

Code:

<?php
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
if ($paged < 2) {
query_posts("posts_per_page=1&offset=(3 * $paged) + 1");
}
?>
               
<?php query_posts('&cat=-4&posts_per_page=3'); ?>

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

                         <?php while (have_posts()): the_post();?>

                      <div <?php post_class() ?> id="post-<?php the_ID();?>">
                        <div class="latest">
                            <div class="blogtitle"><h2><a href="<?php the_permalink() ?> "><?php the_title();?></a></h2></div>
                         
                         <p class="dateposted">Posted on: <?php the_time('l, F jS, Y') ?> at <?php the_time() ?></p>
                         <p class="author">by:<?php the_author(); ?></p>
                         <hr />
                         <div class="excerpt"><?php the_excerpt();?></div>
                        </div>    
                                   
                       </div>
                        
                    <?php endwhile; ?>
<?php next_posts_link('&laquo; Older Entries') ?>
         <?php previous_posts_link('Newer Entries &raquo;') ?>
                  <?php else: ?>

                  <?php endif;?>