Yours is a self-hosted blog, powered by wordpress:
scroll down to the bottom of you blog and click on "powered by wordpress"
and you will find yourself in the place you want:
http://wordpress.org/support/

Our answers won't apply to you (and we cannot do anything with php so honestly I have no clue). Details here:
http://en.support.wordpress.com/com-vs-org/

Here is the code:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<?php
$blog_category = get_option('T_blog_category');
?>
<!-- Begin blog -->
<div id="blog-section">
<div class="span-<?php $sidebar = get_option('T_sidebar'); if($sidebar || (!$theme_options && !$sidebar)) { echo "15 colborder home"; } else { echo "24 last"; } ?>">
<h3 class="sub"><?php echo ""; ?></h3>
<?php $blog_query = new WP_Query("category_name='$blog_category'&showposts=7"); $b == 0; ?>
<?php while ($blog_query->have_posts()) : $blog_query->the_post();
$do_not_duplicate = $post->ID; ?>
<?php $b++; ?>
<div <?php if(function_exists('post_class')) : ?><?php post_class(); ?><?php else : ?>class="post post-<?php the_ID(); ?>"<?php endif; ?>>
<h2>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></h2>
<div class="entry">
<?php include (THEMELIB . '/apps/multimedia.php'); ?>
<p><?php echo gPPGetVideo($post->ID); ?></p>
<?php the_content(); ?>
<?php if ($b == 1) { ?>
<?php include (THEMELIB . '/apps/ad-main.php'); ?>
<?php } ?>
</div>
<div class="clear"></div>
<p class="postmetadata"><?php the_time('M d, Y') ?> | Categories: <?php if (the_category(', ')) the_category(); ?> <?php if (get_the_tags()) the_tags('| Tags: '); ?> | <?php comments_popup_link('Leave A Comment »', '1 Comment »', '% Comments »'); ?> <?php edit_post_link('Edit', '| ', ''); ?> </p>
</div>
<div class="clear"></div>

<?php endwhile; wp_reset_query(); $b == 0; ?>

<div class="nav">
<div class="alignleft"><?php next_posts_link('« Older Entries') ?></div>
<div class="alignright"><?php previous_posts_link('Newer Entries »') ?></div>
</div>
<div class="clear"></div>

</div>
</div>
<?php $sidebar = get_option('T_sidebar'); if($sidebar || (!$theme_options && !$sidebar)) { get_sidebar(); } ?>
<hr />

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Please help! I can't figure this out.