Post title does not belong to the post

hi there,

while redesigning a custom theme, i stumbled upon the following:

since I have deleted nearly everything from the source code, there’s not much left.
now I find it somehow strange that the title I’m calling on the post pages does not belong to the rest of the content.

it’s always mixing up title/category and the rest of the post details.

<?php get_header(); ?>

	<div id="content">

		<div class="post-single">

			<h1>&mdash; <?php the_title(); ?> &mdash;</h1>
			<h2><?php the_category(' / ') ?></h2>

            		<div class="entry">
	            <?php if (have_posts()) : ?><?php while (have_posts()) : the_post();
			$Verlag = do_shortcode(get_post_meta($post->ID, 'Verlag', true));
			$Seiten = get_post_meta($post->ID, 'Seiten', true);
			$Preis = get_post_meta($post->ID, 'Preis', true);
			$Einband = get_post_meta($post->ID, 'Einband', true);
			$Leseprobe = get_post_meta($post->ID, 'Leseprobe', true);

		?>
				<?php the_content(); ?>
                <div class="bottom">
		<?php the_post_thumbnail() ?>

and so on .. any ideas?