Slide Links and Title

[dannymichel]

I'm not much of a coder at all, and for the past 3 days, I've been trying my damndest to add links to the slider image, the ability to chose which 'the_post_thumbnail size I want the slider to use, and a title to each slide. I can take care of the CSS, but I was hoping someone could help me add the rest.
Thanks in advance for any help.

function slides_register() {

$labels = array(
    'name' => _x('Slideshow', 'post type general name'),
    'singular_name' => _x('Slide', 'post type singular name'),
    'add_new' => _x('Add New', 'slide'),
    'add_new_item' => __('Add New Slide'),
    'edit_item' => __('Edit Slide'),
    'new_item' => __('New Slide'),
    'all_items' => __('All Slides'),
    'view_item' => __('View Slide'),
    'search_items' => __('Search Slides'),
    'not_found' =>  __('Nothing found'),
    'not_found_in_trash' => __('Nothing found in Trash'),
    'parent_item_colon' => '',
    'menu_name' => 'Slides'
);

$args = array(
    'labels' => $labels,
    'public' => true,
    'publicly_queryable' => true,
    'show_ui' => true,
    'show_in_menu' => true,
    'query_var' => true,
    'rewrite'   => true,
    'capability_type' => 'post',
    'has_archive' => false,
    'hierarchical' => false,
    'menu_position' => 7,
        'rewrite' => array(  
        'slug' => 'slideshow-item',  
        'with_front' => false,  
        'feed' => true,  
        'pages' => true ),
    'supports' => array('title','editor','thumbnail', 'excerpt')
  ); 

register_post_type( 'slides' , $args );

}

add_action('init', 'slides_register');
http://pastie.org/5112480