Creating custom post type template via: http://new2wp.com/pro/wordpress-custom-post-types-object-oriented-series3

cpt-loop.php

<?php
	$q = new WP_query();
	$q->query( 'post_type=site' );

	/* Begin the Loop */
	if ($q->have_posts()) :
		while ($q->have_posts()) : $q->the_post();

			/**
			 * Now instantiate the Sites class we made in posttypes.php setting the $s variable
			 * Create a new variable $a set to the value of the mshot(250) function from the class.
			 */
			$s = new TypeSites();
			$a = $s->mshot(250);

			/**
			 * Output the content of the Site posts
			 */
			?>

			<div id="site-<?php the_ID(); ?>" class="sites clearfix user_id_<?php the_author_ID(); ?>">
				<div class="site-thumbnail">
					<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
						<?php
						/**
						 * Here we echo out the value of the $a which is an array.
						 * The [1] will retreive the 2nd value of mshot() which returns the
						 * site thumbnai image which is generated by the Url entered in the post.
						 */
						 echo $a[1];
						 ?>
					</a>
				</div>

				<h2 class="site-title"><a href="<?php the_permalink(); ?>"><?php the_title();?></a></h2>
				<div class="meta">
					<?php __( 'Added by: '. the_author_posts_link() .' on '. the_time( "F j" ) .' | '. comments_popup_link( __( "0 Comments" ), __( "1 Comment" ), __( "% Comments" ) ); ?>
				</div>

				<div class="entry">
					<?php the_content( __( '(More ...)' )); ?>
				</div>
				<div class="fl post-tags"><?php the_tags( __( ' ' ), ' , ', ' ' ); ?></div>
				<div class="fr edit-link"><?php edit_post_link( __( 'Edit' ) ); ?></div>
			</div>

		<?php endwhile; ?>

		<?php if( function_exists( 'wp_pagenavi' )) { wp_pagenavi(); } else { ?>
			<div class="navigation clearfix">
				<div class="alignleft"><?php next_posts_link('&laquo; Previous Entries'); ?></div>
				<div class="alignright"><?php previous_posts_link('Next Entries &raquo;'); ?></div>
			</div>
		<?php } ?>

<?php endif; ?>