/**
 * Testing a thing for Beth.
 *
 */

// First let's check to make sure this function has not been run before
if (get_option('changeposttype_has_run') != "yes") {

    //Get all the posts in category 230 - change that number to the category ID of posts you're trying to change
    query_posts("post_type=post&cat=230&showposts=-1&offset=0");
    if (have_posts()) : while (have_posts()) : the_post();
        set_post_type($post->ID, 'uu_services');
        endwhile; endif;

    wp_reset_query();

//now that function has been run, set option so it wont run again
update_option( 'changeposttype_has_run', 'yes' );

}