I think my single page is jacked up I'm testing a theme I made to change my site and when I click the posts link to go to the single post nothing shows and it looks like it the title says page not found

<?php get_header(); ?>

        <div id="content">
                <?php query_posts($query_string . '&cat=-3'); ?>
                <?php if(have_posts()):?>
                    <?php while(have_posts()):the_post();?>
        <!-- loop starts// contains the loop-->
            <div class="date-info">
                <div class="date"><?php the_time('d'); ?></div>
                <div class="day"><?php the_time('M'); ?></div>

            </div>

            <div class="post-info">
                <div class="post-title">
                    <h2 class="post-title"><a href="<?php the_permalink();?>"title="<?php the_title();?>"><?php the_title();?></a></h2>
                </div>

                <div class="post-meta">
                    Posted By <?php the_author();?> / In <?php the_category(',')?> / With <?php comments_popup_link('No Comments','1 Comments','% Comments');?>
                </div>

                <div class="post">
                    <?php the_content();?>
                        <?wp_link_pages();?>
                            <?php edit_post_link('Edit','<p>','</p>');?>
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                                    <ul>
                                        <li><a href=”http://stumbleupon.com/submit?url=<?php the_permalink(); ?>&title=<?php the_title(); ?>”><img src="/wp-content/themes/templafied/images/stumbleupon.png" alt="stumble" /></a></li>
                                        <li><a href="http://digg.com/submit?phase=2&url= <?php the_permalink();?>&title=<?php the_title();?>"><img src="/wp-content/themes/templafied/images/digg.png" alt="digg" /></a></li>
                                        <li><a href="http://del.icio.us/post?v=4&noui&jump=close&url=<?php the_permalink();?>&title=<?php the_title();?>"><img src="/wp-content/themes/templafied/images/delicious.png" alt="delicious" /></a>

                                    </ul>
                </div>        

            </div>
        <!--Loop Ends -->
        <?php endwhile;?>
            <?php endif;?>
    </div>

        <?php get_sidebar(); ?>    

        <?php get_footer(); ?>

is something wrong with my single.php file?

http://www.templafied.com

if you click one of the posts in the loop or in the sidebar nothing shows up

is this anything anyone can help with? the site is live and I cant figure out whats wrong with it? now the links direct to the 404 template so I'm wondering if its something to do with the permalink?

more likely a rewrite error.

If this is single.php, I am not sure what this is doing at the top.

<?php query_posts($query_string . '&cat=-3'); ?>

Technically, that would change your query and alter the loop which should already be set.

Try commenting that out like this and see if your post/page will show

<?php // query_posts($query_string . '&cat=-3'); ?>