[development] Menu Callback

hello. This script make a page into administer->Content management i don't have a manual, but testing someone script i was make the next script: tags.module $items['admin/content/tags'] = array( 'title' => 'Tags', 'description' => 'Administrar los Tags.', 'page callback' => 'comment_admin', 'access arguments' => array('administer categoria'), 'file' => 'categoria.admin.inc', ); categoria.admin.inc comment_admin() comment_admin_overview() the problem is, that is we change comment by categoria don't work good. help me please. thanks.