<?php query_posts( array('posts_per_page' => -1,  'cat' => '3', ));

 while ( have_posts() ) : the_post();
$counter++; // add +1 to count for each post
?>




<?php
if($counter===1) {

?>



<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>

<?php the_content();





} else { ?>






<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>

<?php the_excerpt();?>


<?php

}
?>




<?php endwhile;?>



<div class="navigation"><p><?php posts_nav_link(); ?></p></div>



<?php
wp_reset_query();?>