123-reg.co.uk Domain Name Help?

I have a domain name at 123-reg.co.uk and it redirects to my IP address, but when I goto a sub-dir of the website (files hosted at home) eg domainname.co.uk/files/ via link on the website, the address bar stays "domainname.co.uk" not "domainname.co.uk/files". How can I change this or make the domainname be my IP instead of [...] http://bit.ly/mfMHKG