post page repeating content twice

post page repeating content twice.anyone help me to correct php code.

the codes are like…
(template)

<?php /*?>

<?php if(have_posts()):
while(have_posts()): the_post(); ?>
<h1><?php the_title();?></h1>
<p><?php the_content();?></p>
<?php endwhile;
 else :
endif;?>

<?php */?>

(WP Page)

<?php */?>

<?php query_posts('cat=4&showposts=8'); ?>
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<a>"><?php the_title()?></a>
<?php the_excerpt();?>
<?php endwhile; endif; ?>

<?php */?>

pls….

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