Copy Wordpress installation to 3 new sites.

Ok, so we have a WP site hosted with 1and1.co.uk and we would like to copy this site to another 1and1 contract under which we have 3 new domains registered.

Each of the 3 new domains need to point to their own instance of the copied site, with the URL's etc corrected. We will then strip the content of these sites, pages etc. allowing us to add the required content to each new site while maintaining the branding and them of the main corporate site.

Please note, the original site must remain in operation!