Create new user from my Join page

I got this working. It was a major pain.

define('DB_NAME', 'my_database');
define('DB_USER', 'username');
define('DB_PASSWORD', 'password');
define('DB_HOST', 'localhost'); 

define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');
$table_prefix  = 'wp_';
// Define absolute path to where
// your blog is located
define('ABSPATH',
'/home/website_root/public_html/wordpress_directory/');

require_once(ABSPATH.'wp-settings.php');
define('WPINC', 'wp-includes');

	require('https://www.your_domain/raceblog/wp-config.php');
require_once( ABSPATH . WPINC . '/wp-db.php');
require_once( ABSPATH . WPINC . '/cache.php');
require_once( ABSPATH . WPINC . '/registration.php');
require_once( ABSPATH . WPINC . '/formatting.php');
require_once( ABSPATH . WPINC . '/plugin.php');
require_once( ABSPATH . WPINC . '/user.php');
require_once( ABSPATH . WPINC . '/functions.php');
require_once( ABSPATH . WPINC . '/pluggable.php');

function my_wp_login($username,$password)
{
	$user_login = '';
	$user_pass = '';
	$using_cookie = FALSE;

	if ( !isset( $_REQUEST['redirect_to'] ) || is_user_logged_in() )
$redirect_to = 'wp-admin/';
else
$redirect_to = $_REQUEST['redirect_to'];

if ( true ) {
	$user_login = $username;
	$user_login = sanitize_user( $user_login );
	$user_pass  = $password;
			$rememberme = false;
} else {
	$cookie_login = wp_get_cookie_login();
	if ( ! empty($cookie_login) ) {
		$using_cookie = true;
		$user_login = $cookie_login['login'];
		$user_pass = $cookie_login['password'];
	}
}

do_action_ref_array('wp_authenticate', array(&$user_login, &$user_pass));

if ( $user_login && $user_pass && empty( $errors ) ) {
	$user = new WP_User(0, $user_login);

// If the user can't edit posts,
// send them to their profile.

if ( !$user->has_cap('edit_posts') && ( empty( $redirect_to ) || $redirect_to == 'wp-admin/' ) )

//$redirect_to = get_option('siteurl') . '/wp-admin/profile.php';

if ( wp_login($user_login, $user_pass, $using_cookie) ) {
if ( !$using_cookie )
					wp_setcookie($user_login, $user_pass, false, '', '', $rememberme);
				do_action('wp_login', $user_login);
				   //wp_redirect($redirect_to);
			//exit();
		} else {
			if ( $using_cookie )
					$errors['expiredsession'] = __('Your session has expired.');
		}
	}
}

// Create WordPress user
wp_create_user($username, $password, $email );		

// Login to WordPress
my_wp_login($username,$password);