Pagenavigation is not working

Hi

I’m creating a new website and i have the following test-server:
http://test.irene-hofer.ch. In “Blog”, I’m using a page-navigation at the bottom (1,2,3…) but somehow, this isn’t working. When I choose any number, I stay on exactly the same page. I see that there is a problem with the link. The page ID of “Blog” is ?page_id=896 and the link for another websites is only ?page_id=896&paged=2.

It would be great if anyone could help me. Here is the PHP for the Blog-Template. (I’m using a special theme, so I have a seperate PHP for the Blog).

<?php
/*
Template Name: Blog
*/
?>

<?php get_header(); ?>
<!-- Begin #colleft -->
            <div id="colLeft">

        <?php $postindex = 1;
             if(!query_posts('showposts='.get_option('journal_home_posts').'&tag=homepost')){
                if(get_option('journal_home_posts')!=''){
                     query_posts('showposts='.get_option('journal_home_posts'));
                }else{
                    query_posts('showposts=6');
                }
            }else{
                query_posts('showposts='.get_option('journal_home_posts').'&tag=homepost');
                if(get_option('journal_home_posts')!=''){
                     query_posts('showposts='.get_option('journal_home_posts').'&tag=homepost');
                }else{
                    query_posts('showposts=6&tag=homepost');
                }
            }

         if (have_posts()) : while (have_posts()) : the_post(); ?>
        <?php if(get_option('journal_box_model')!="normal"){?>
            <div class="postBox <?php if(($postindex % 2) == 0){ echo 'lastBox';}?>">
                <div class="postBoxInner">
                    <?php
                    if ( has_post_thumbnail()) {
                        //the_post_thumbnail();?>
                        <img src="<?php bloginfo('template_directory'); ?>/timthumb.php?src=<?php echo get_image_path($post->ID); ?>&h=90&w=255&zc=1" alt="<?php the_title(); ?>">
                    <?php } else {?>
                        <img src="<?php bloginfo('template_directory'); ?>/images/nothumb.jpg" alt="No Thumbnail"  />
                    <?php } ?>
                    <h2><a href="<?php the_permalink() ?>" ><?php the_title(); ?></a></h2>
                    <div class="excerpt"><?php  wpe_excerpt('wpe_excerptlength_index', 'wpe_excerptmore') ?></div>
                    <div class="meta"> <?php the_time('M j, Y') ?> &nbsp;&nbsp;&nbsp;<img src="<?php bloginfo('template_directory'); ?>/images/ico_post_comments.png" alt="" /> <?php comments_popup_link('No Comments', '1 Comment ', '% Comments'); ?></div>
                </div>
                <a href="<?php the_permalink() ?>" class="readMore">Read More</a>
            </div>
            <?php ++$postindex; ?>
            <?php }else{?>
                <div id="singlePost" class="normal">
                        <h1><a href="<?php the_permalink() ?>" ><?php the_title(); ?></a></h1>
                        <div class="meta">
                         <?php the_time('M j, Y') ?> by <?php the_author_posts_link()?>&nbsp;&nbsp;&nbsp;<img src="<?php bloginfo('template_directory'); ?>/images/ico_post_comments.png" alt="" /> <?php comments_popup_link('No Comments', '1 Comment ', '% Comments'); ?>&nbsp;&nbsp;&nbsp;<img src="<?php bloginfo('template_directory'); ?>/images/ico_post_date.png" alt="" /> Posted under:  <?php the_category(', ') ?>
                        </div>
                        <?php the_content(__('Read more &raquo;')); ?>
                    </div>
            <?php }?>
            <?php endwhile; ?>

    <?php else : ?>

        <p>Sorry, but you are looking for something that isn't here.</p>

    <?php endif; ?>
    <div style="clear:both;"></div>
            <?php if (function_exists("emm_paginate")) {
                emm_paginate();
            } ?>
    </div>
    <!-- End #colLeft -->
<?php get_sidebar(); ?>
<?php get_footer(); ?>