There is a misconception about copyright: while registration *enhances* protection, it is not necessary to register to have copyright protection. Rather, copyright comes into being when an original work is created; creating the work (e.g. website text and graphics) automatically gives the creater (or the employer/customer, if the work is a commissioned work or one created by an employee as a "work for hire") copyright in it. You should should assert and police your copyright--e.g. have a notice on the website that it and its content is "copyright [insert owner name]" and take action (such as cease-and-desist letters) against anyone violating copyright, but you can protect copyright without the formalities of registration.