Deprecated problem, can't figure it out

Hello,

I am doing a plugin tutorial but it was made for wordpress 2. something.

The problem is – when I go to admin menu, under Settings – I get a notice error =>

” has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in C:\wamp\www\jw\wp-includes\functions.php on line 3017″

This is the relevant code:

<?php

if ( ! class_exists('SBC_Admin') ) {

	class SBC_Admin {

		function add_config_page() {

			if ( function_exists('add_submenu_page') ) {
				add_options_page(
					'Seach by Category Options',
					'Search by Category',
					10,
					basename(__FILE__),
					array('SBC_Admin', 'config_page')
				);
			}
		}

		function config_page() {
			if ( isset($_POST['submit']) ) { // we're updating options

			}?>
			<div class="wrap">
				<h2>Search by category options</h2>
				<form action="" method="post" id="sbc-config">

				</form>
			</div>
			<?php
		}

	}

}

// insert into admin panel
add_action('admin_menu', array('SBC_Admin', 'add_config_page'));

?>