"I have copied the content center over to a remote server "
What exactly did you copy?
If the Content Center is on another server, you will not be able to login to it on a client workstation with 'localhost'. Localhost is a shortcut that always resolves to the machine you are currently working at. It will never resolve to the server.
You will need to know the server computer name and will need to specify this for all clients.
However, if this doesn't work, you might have to specify the IP Address of the server. I ran into this one last week. Of course this only works if the server has a static ip. If your not sure, contact your network administrator as this means something is wrong with your DNS server.
Ronnie Wilkins, Jr.