you should use different single template for your content....

I mean ...


http://elliotjaystocks.com/blog/tutorial-multiple-singlephp-templates-in-wordpress/

in that blog is a comment from @JustinTadlock, that have a better..mm coolest solution....


and using

 <?php the_post_thumbnail(); ?>

will be a good start

http://codex.wordpress.org/Function_Reference/the_post_thumbnail


see'a

Setting up your site to use post thumbnails (or 'featured images') is quite easy. I just recently did a little article on it here: http://blog.designbygray.ca/using-wordpress-featured-image-post-thumbnail/

The jist of it:

Make sure something like this is in your functions.php file:

if ( function_exists( 'add_theme_support' ) ) {
    add_theme_support( 'post-thumbnails' );
}

You can call the image in your template with this:

<?php the_post_thumbnail(); ?>