just get a hold of brave net's DNS (domain name servers) they should be ns(1-2).bravehost.com

and put them in place of the domain name servers your co.uk domain already has ( how you do it is going to be a little tricky becuase you have to know where to go and input that info sometimes it's simple and sometimes it's a moderatly difficult depending on who you registered your domain with and how they're support staff is)

Thank you Jose - looks like some detective work. Would welcome any shortcuts!