Removing visible code from a single post

Hi,

I have a custom theme I had built for me, for which all the content is built around pages. I need to add a singular post, however when I do, I get a header titled ‘My freestyle blog’ and an image of a group of people at the top of the page – accompanied by a butterfly image on the left hand side of the page.

After a lot of looking around for a solution I found that by editing the single.post.php I could eradicate the image, however now have the text http://plma.com.au/wp-content/themes/PLMA/ appearing at the top of the page. I am assuming this is because I have deleted something that is related to the theme, however am not sure how to remove it. I am reluctant to revert back to the original code given it contains the ‘my freestyle blog’stuff on it!

Below is the code on the page that is throwing this error, and I have also below that paste the original code for reference. Appreciate any help.

CURRENT CODE CAUSING ERROR

<?php
/**
 * @package WordPress
 * @subpackage HTML5-Reset-Wordpress-Theme
 * @since HTML5 Reset 2.0
 */
 get_header(); ?>
<div class="category-page">
		<div class="aside-wrapper four columns">
			<aside>

				<hr>
				 <?php include(TEMPLATEPATH . '/sidebar-custom.php');  ?>

			</aside>

		</div>

	 <div class="twelve columns category-list">
		<article class="post" >
		<hr>
		<p style="text-align: center;"><?php echo get_template_directory_uri(); ?>/</p>
	 <h3 class="entry-title"><?php the_title(); ?></h3>
			<?php if (have_posts()) : while (have_posts()) : the_post(); ?>

			<div class="entry-content">
				<?php the_content(); ?>
				<?php //posted_on(); ?>
			</div>
				<div class="navigation">
					<div class="alignleft">
						<?php previous_post('« « %','previous: ', 'yes'); ?>
					</div>
					<div class="alignright">
						<?php next_post('% » » ','next: ', 'yes'); ?>
					</div>
				</div>
			<?php endwhile;
				endif ?>
			<?php edit_post_link('Edit this entry','','.'); ?>
			 <div style="font-size:11px;font-style:italic;text-align:center;padding-top:55px;"></div>
		</article>

	</div>
	<div class="four columns show-in-mobile">

				<hr>
			 	<?php include(TEMPLATEPATH . '/sidebar-custom.php');  ?>

		</div>

	</div>
<?php  //get_sidebar(); ?>

<?php get_footer(); ?>

ORIGINAL CODE

<?php
/**
 * @package WordPress
 * @subpackage HTML5-Reset-Wordpress-Theme
 * @since HTML5 Reset 2.0
 */
 get_header(); ?>
<div class="category-page">
		<div class="aside-wrapper four columns">
			<aside>
				<h3>My FreeStyle Blog‏</h3>

				<hr>
				 <?php include(TEMPLATEPATH . '/sidebar-custom.php');  ?>
					<img src="<?php bloginfo( 'template_directory' ); ?>/_/images/aside-logo.png">
			</aside>

		</div>

	 <div class="twelve columns category-list">
		<article class="post" >
		<hr>
		<p style="text-align: center;"><img class="size-medium wp-image-40137 aligncenter" alt="my_freestyle_01_purchase" src="<?php echo get_template_directory_uri(); ?>/_/images/blog-banner.png" width="100%" height="100%"></p>
	 <h3 class="entry-title"><?php the_title(); ?></h3>
			<?php if (have_posts()) : while (have_posts()) : the_post(); ?>

			<div class="entry-content">
				<?php the_content(); ?>
				<?php //posted_on(); ?>
			</div>
				<div class="navigation">
					<div class="alignleft">
						<?php previous_post('« « %','previous: ', 'yes'); ?>
					</div>
					<div class="alignright">
						<?php next_post('% » » ','next: ', 'yes'); ?>
					</div>
				</div>
			<?php endwhile;
				endif ?>
			<?php edit_post_link('Edit this entry','','.'); ?>
			 <div style="font-size:11px;font-style:italic;text-align:center;padding-top:55px;">Blogs posted are strictly the opinion of the blog authors and monitored regularly by Abbott Diabetes Care</div>
		</article>

	</div>
	<div class="four columns show-in-mobile">

				<h3>My FreeStyle Blog‏</h3>

				<hr>
			 	<?php include(TEMPLATEPATH . '/sidebar-custom.php');  ?>
				<img src="<?php bloginfo( 'template_directory' ); ?>/_/images/aside-logo.png">

		</div>

	</div>
<?php  //get_sidebar(); ?>

<?php get_footer(); ?>