register_post_type does not show admin ui

HI, i hv followed this guide http://codex.wordpress.org/Function_Reference/register_post_type
to register new post type (wp 2.9.2)

Here is my code placed in functions.php at current theme dir

################## REGISTER POST TYPE IKLAN ########################

add_action('init', 'register_iklan_init');
function register_iklan_init()
{
  $labels = array(
    'name' => _x('Iklan', 'post type general name'),
    'singular_name' => _x('Iklan', 'post type singular name'),
    'add_new' => _x('Add New', 'iklan'),
    'add_new_item' => __('Add New Iklan'),
    'edit_item' => __('Edit Iklan'),
    'new_item' => __('New Iklan'),
    'view_item' => __('View Iklan'),
    'search_items' => __('Search Iklan'),
    'not_found' =>  __('No iklan found'),
    'not_found_in_trash' => __('No iklan found in Trash'),
    'parent_item_colon' => ''
  );
  $args = array(
    'labels' => $labels,
    'public' => true,
    'publicly_queryable' => true,
    'show_ui' => true,
    'query_var' => true,
	'exclude_from_search' => true,
    'rewrite' => true,
    'capability_type' => 'post',
    'hierarchical' => false,
    'menu_position' => '5',
    'supports' => array('title','editor','author','thumbnail','excerpt','comments','custom-fields'),
	'taxonomies' => array('blokiklan')
  );
  register_post_type('iklan',$args);
}

//add filter to insure the text Book, or book, is displayed when user updates a book
add_filter('post_updated_messages', 'iklan_updated_messages');
function book_updated_messages( $messages ) {

  $messages['iklan'] = array(
    0 => '', // Unused. Messages start at index 1.
    1 => sprintf( __('Iklan updated. <a href="%s">View iklan</a>'), esc_url( get_permalink($post_ID) ) ),
    2 => __('Custom field updated.'),
    3 => __('Custom field deleted.'),
    4 => __('Iklan updated.'),
    /* translators: %s: date and time of the revision */
    5 => isset($_GET['revision']) ? sprintf( __('Iklan restored to revision from %s'), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false,
    6 => sprintf( __('Iklan published. <a href="%s">View iklan</a>'), esc_url( get_permalink($post_ID) ) ),
    7 => __('Iklan saved.'),
    8 => sprintf( __('Iklan submitted. <a target="_blank" href="%s">Preview iklan</a>'), esc_url( add_query_arg( 'preview', 'true', get_permalink($post_ID) ) ) ),
    9 => sprintf( __('Iklan scheduled for: <strong>%1$s</strong>. <a target="_blank" href="%2$s">Preview iklan</a>'),
      // translators: Publish box date format, see http://php.net/date
      date_i18n( __( 'M j, Y @ G:i' ), strtotime( $post->post_date ) ), esc_url( get_permalink($post_ID) ) ),
    10 => sprintf( __('Iklan draft updated. <a target="_blank" href="%s">Preview iklan</a>'), esc_url( add_query_arg( 'preview', 'true', get_permalink($post_ID) ) ) ),
  );

  return $messages;
}

//CUSTOM TAXONOMY FOR IKLAN ONLY
add_action( 'init', 'create_iklan_taxonomy', 0 );

function create_iklan_taxonomy() {
register_taxonomy( 'blokiklan', 'iklan', array('hierarchical' => false, 'label' => 'Blok Iklan', 'query_var' => true, 'rewrite' => true ) );
}

//END REGISTER POST TYPE IKLAN

unfortunatelly it wont show admin ui
i have set ‘show_ui’ => true, at the args above…

I don’t know what’s wrong with the code,
anyone could help me?

thanks