this is very simple!.. make your page..like :
page-contactus.php:
and in you can call your page..!;;
e:g;
<?php
get_header();
?>
<?php if ( have_posts() ) : ?>
<?php /* Start the Loop */ ?>
<?php while ( have_posts() ) : the_post(); ?>
<?php wv_the_title(' <h1>','</h1>');?>
</div>
<?php the_content();?>
<?php endwhile; ?>
<?php endif; // have post?>
<?php
get_footer();
?>
hope you will find your answer!