I am looking to find my farther he is in the sex offenders register he was releaced from prison in 2009 and I am looking to track him down can anyone advise me how to do this?

Each state usually has its registry posted online. You can check there if he is suppose to register.

United States Department of Justice National Sex Offender Public Website (http://www.nsopw.gov/Core/Portal.aspx?AspxAutoDetectCookieSupport=1)

Yes, if he is registered, just search the register. Also no family member knows where he is at ?

I live in the united kingdom and it is not coming up when I Google the register to search

Do you know the general area he was released to? Did he finish his sentence or is he out on parole? If he is on parole you may be able to find his parole officer and get some information that way.