PokerStars is licensed and regulated by the Gambling Commission of Great Britain and the Home Games offered to you on the Internet site found at pokerstars.uk (the "Site") are operated under a remote casino operating license issued to us by the Gambling Commission of Great Britain.
You simply need to log in to your existing PokerStars account, then follow the prompts to upgrade to the PokerStars UK version of the software. Your username and password don't change and you will still have access to all your usual games and promotions.