WordPress show different custom post type

You register a post type named “latest news”, but you seem to already know that, so I am unsure what the question is. Do you want someone to copy and paste from the Codex for you, and change a couple of text strings?

function codex_custom_init_v2() {
    $args = array( 'public' => true, 'label' => 'Latest News' );
    register_post_type( 'latest-news', $args );
}
add_action( 'init', 'codex_custom_init_v2' );

You can then customize the post type archive by creating an archive-{post_type}.php file and customize the single post display by creating a single-{post_type}.php file.