I'm thinking the problem is within the index.php file. Here is the code...
<?php get_header();?>
<?php
$t_show_post = t_get_option ("t_show_post");
?>
<div id="main">
<div class="columns">
<div class="narrowcolumn">
<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
<div <?php post_class();?>>
<div class="title">
<h2>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></h2>
<small><?php _e('Posted by','nattywp'); ?> <span class="author"><?php theme_get_profile() ?></span> <?php _e('in','nattywp'); ?> <?php the_category(' | ');?> - (<?php comments_popup_link(__('0 Comments', 'nattywp'), __('1 Comments', 'nattywp'), __('% Comments', 'nattywp')); ?>)</small> <?php edit_post_link(__('Edit','nattywp'), ' | ', ''); ?>
</div>
<div class="entry">
<?php
if ( has_post_thumbnail() ) { // check if the post has a Post Thumbnail assigned to it.
the_post_thumbnail();}
if ($t_show_post == 'no') {//excerpt
get_thumb('Image','130','85','small-image', '<div class="thumb">', '</div>' );
the_excerpt();
} else { //fullpost
t_show_video($post->ID);
the_content(); ?>
<div id="morepage-list"><?php wp_link_pages(array('before' => '<p>Pages: ', 'after' => '</p>', 'next_or_number' => 'number')); ?></div>
<?php } ?>
<div class="clear"></div>
</div>
<p class="postmetadata">
<span class="category"><?php the_tags('', ', ', ''); ?></span>
</p>
</div>
<?php endwhile; ?>
<div id="navigation">
<?php natty_pagenavi(); ?>
</div>
<?php else :
echo '<div class="post">';
if ( is_category() ) { // If this is a category archive
printf(__('<h2 class=\'center\'>Sorry, but there aren\'t any posts in the %s category yet.</h2>','nattywp'), single_cat_title('',false));
} else if ( is_date() ) { // If this is a date archive
_e('<h2>Sorry, but there aren\'t any posts with this date.</h2>','nattywp');
} else if ( is_author() ) { // If this is a category archive
$userdata = get_userdatabylogin(get_query_var('author_name'));
printf(__('<h2 class=\'center\'>Sorry, but there aren\'t any posts by %s yet.</h2>','nattywp'), $userdata->display_name);
} else {
_e('<h2 class=\'center\'>No posts found.</h2>','nattywp');
}
get_search_form();
echo '</div>';
endif; ?>
</div> <!-- END Narrowcolumn -->
<div id="sidebar" class="profile">
<?php get_sidebar();?>
</div>
<div class="clear"></div>
<?php get_footer(); ?>