how can create template blog page in wordpress

<?php 
/*     Template Name: Blog 
    GREEN EYE Theme's Blog Posts Showung Template
    Copyright: 2013, D5 Creation, www.d5creation.com
    Based on the Simplest D5 Framework for WordPress
    Since green 1.2.6
*/

get_header('inner');?>
<div class="blog_inner_content">
         <div class="blog_left">

<?php
$args = array( 'post_type'=> 'post','posts_per_page' =>'5', 'paged' => ( get_query_var('paged') ? get_query_var('paged') : 1 ) );
query_posts( $args ); 
if (have_posts()) : while (have_posts()) : the_post();?>
  <h5><a href="<?php the_permalink(); ?>"><?php the_title();?></a></h2>
  <?php the_content(); ?>
 <div class="clear"> </div>
 <p> <span class="entry-date">This entry was posted in <?php
$category = get_the_category();
echo $category[0]->cat_name;
?> <?php echo get_the_date(); ?>,<?php comments_popup_link('No Comments &#187;', '1 Comment &#187;', '% Comments &#187;'); ?></span> <?php the_tags('<br />Tags: ', ', ', '<br />'); ?></p>
 <?php endwhile; ?>
 <div class="pagination">
 <span><?php previous_posts_link('&laquo; Previous Entries') ?>
<?php next_posts_link('Next Entries &raquo;','') ?></span>
</div>
 
 <?php  else:  ?>
 
 <h1 class="arc-post-title">Sorry, we couldn't find anything that matched your search.</h1>
       
        <h3 class="arc-src"><span>You Can Try Another Search...</span></h3>
        <?php get_search_form(); ?>
        <p><a href="<?php echo home_url(); ?>" title="Browse the Home Page">&laquo; Or Return to the Home Page</a></p><br />
        <h2 class="post-title-color">You can also Visit the Following. These are the Featured Contents</h2>
        <div class="content-ver-sep"></div><br />
        <?php get_template_part( 'featured-box' ); ?> 
 
<?php endif; wp_reset_query(); ?>
</div>
     <div class="blog_sidebar">
 <?php 
if ( dynamic_sidebar('blog_side_1') ) : 
else : 
?>
    <?php endif; ?>
        </div>
       
    </div>
    </div>
         <?php get_footer('inner'); ?>

wordpress submit contact form submit to jquery

<script type="text/javascript">
$(function(){
           var templateDir = "<?php bloginfo('template_directory') ?>";
           var file="/contact.php";
                    $("#ContactForm").validate({
          submitHandler: function(form) {
           $.post(''+templateDir+file, $(form).serialize(), function(data)
            {
            alert(data);
            $("#ContactForm").find("input[type=text], textarea").val("");
            });   
          }
      });
   
});                  
</script>

how can use shortcode in theme on wordpress

<?php echo do_shortcode("[example_shortcode]"); ?>