NETWORK SULITION (uRGENT)

Hello,
I want to connect 6 comp with LAN,ONE COMPUTER HAveing a winXP or the rest 5 win Vista or i have three printer or have one wireless router or two switchs 8 ports i don't know exactly how can i connect with or want to use internet on all that computers, if i connect
6 pc in LAN ( Local Area Network) peer to
peer.plz give me the brifly detail with diagram if possible.thanks