i get "canot find server" you will need to set at least two nameservers in the control panel where you registerd that domain.Then you will need to wait for 24 - 72 hours to let it propogate.But you mentioned you already waited for 24 hours so .....
it would be helpfull if you tell us who is responsible for your dns ? if you have a dedicated server it is you (yourself) then you run most probably BIND (also known as "named") if your dns is handled by your dns agent then get in touch with them and tell them something is wrong here.
if this works
http://your_ip_here
but this refuses to work
http://www.domainname.co.uk
then it is a dns issue
you need to fill in your two nameservers at your registerar control panel usually it is something like ns1.you.com and ns2.you.com.If you are on a shared host this host most supply there nameservers to you