hopefully you are just trying to run DHCP. If the laptop has the NIC driver installed (double check in Device Manager) then it is very simple. It would be simpler if you had stated your operating system, but....
Go to Start, Run then browse for program Files/internet Ex-plorer/COnnection Manager, Inetwiz and click OK.
Choose connect with LAN (as opposed to modem0, then take the default settings on the next page.
choose if you want to set up e-mail on this machine. If so, just fill in the relevant data. If not, or if you want to do this later (you can just run this later), choose no.
There you go. Just click on IE.