Newbie help needed on network

Newbie help needed on network



I have three pc's which I want to network, one being a laptop



I have an Ethernet dsl modem, a 4 port router, a wireless access point and
laptop wireless card and nics in the other two desktop pcs.



I assume that I plug the router into pc ones nic, the modem into the router,
the wireless access point into the router and pc 2 into the router



My main questions are how do I setup each pc to use the modem connected to
the router and also the printer connected to pc1 and file sharing across all
pcs.



What protocol do I use and what ip addressing etc do I need to setup on
each pc.



The desktop pc's have win xp professional and the laptop has widows 2000
peofessional installed.



I also have another network connection of the laptop already set up by my it
department so I can plug into there network when I go to head office, I don'
t want to mess any of these settings up