Alphabetically sort a taxonomy.php template by post title

you can query_posts and orderby=title:

<?php //*The Query*//
$paged = ( get_query_var( 'paged' ) ) ? get_query_var( 'paged' ) : 1;
query_posts($query_string . '&post_type=YOUR-POST-TYPE&posts_per_page=1&orderby=title&order=asc&paged='.$paged);
if(have_posts()) : while(have_posts()) : the_post();
?>

<?php endwhile; ?>

<?php else : ?>

<?php endif; wp_reset_query(); ?>

more info: WP_Query#Order/Orderby Parameters