livebillal on "[Plugin: WordPress MU Domain Mapping] One WP website two domains"

Yes, I am working on multisite with IIS. Need to setup below two domains.

http://www.weddingsmadeinitaly.co.uk
http://www.weddingsitaly.co.uk

Multisite setup is ok.

/* Multisite */
define( 'WP_ALLOW_MULTISITE', true );
define('SUNRISE','on');
define('MULTISITE', true);
define('SUBDOMAIN_INSTALL', false);
define('DOMAIN_CURRENT_SITE', 'www.weddingsmadeinitaly.co.uk');
define('PATH_CURRENT_SITE', '/');
define('SITE_ID_CURRENT_SITE', 1);
define('BLOG_ID_CURRENT_SITE', 1);

How will I go next step? This is the main domain http://www.weddingsmadeinitaly.co.uk