[wp-hackers] custom taxonomy list page?

[Joshua Sibelman]

I've been searching Google for this to no avail.

I'm working on a restaurant site, and I have a custom post type for dishes, like so:

function dish_register() {
    $labels = array(
        'name'=>_x('Dishes', 'post type general name'),
        'singular_name'=>_x('Dish', 'post type singular name'),
        'add_new'=>_x('Add New', 'dish'),
        'add_new_item'=>__('Add New Dish'),
        'edit_item'=>__('Edit Dish'),
        'new_item'=>__('New Dish'),
        'view_item'=>__('View Dish'),
        'search_items'=>__('Search Dishes'),
        'not_found'=>__('No Dishes Found'),
        'not_found_in_trash'=>__('No dishes found in Trash'),
        'parent_item_colon'=>''
    );

    $args = array(
        'labels'=> $labels,
        'public'=> true,
        'publicly_queryable'=>true,
        'show_ui'=>true,
        'show_in_nav_menus'=>true,
        'query_var'=>'dish',
        'rewrite'=>true,
        'capability_type'=>'post',
        'hierarchicial'=>false,
        'menu_position'=>5,
        'supports'=>array(
            'title',
            'editor',
            'thumbnail',
            'excerpt',
            'custom-fields',
            'revisions'
        )   
    );  

    register_post_type('dish', $args);
}

An example of one of the custom taxonomies I want to use is this:

register_taxonomy('Main Ingredient', array('dish'), array(
    'hierarchical' => true,
    'label' => 'Main Ingredient',
    'singular_label' => 'Main Ingredient',
    'query_var'=>true,
    'rewrite' => true)
);


The custom taxonomies are working fine in the admin, and I can go to http://myurl.com/main-ingredient/pork and see a list of all dishes with pork in them.

What I'm wanting to do is be able to hit http://myurl.com/main-ingredient and get a list of all the various main-ingredient values.

I found this reference, which is exactly what I'm trying to do:
http://wordpress.stackexchange.com/questions/4663/custom-taxonomy-listing-page-when-no-term-set-all-terms

But the solution is not working for me - I'm still getting a 404 when going to http://myurl.com/main-ingredient

Any suggestions on how best to do this?

Thanks,
Josh