If both the server & client machines are on the same network, then it is easy as writing the following URL in your browser:

server_ip_address:8069

where server_ip_address is something like 192.168.1.100

If you faced any farther problems, then you need to check if any firewall or device on the network is blocking the 8069 port.

Hope this will help you..%

What do you mean by 'please help me out to set another client machine for my server machine'?

Do you want to enable other users to use the software, do you want to setup another frontend of openERP and use the same database, do you want to install a second openERP server on the same server, ???

I am sorry I do not understand your question.