Well, first off i got ask you that do you have the necessary hardware for your network?
Are u trying to setup an network with ethenet connection?
I am going to go head and assume that. It's the most common network way to setup samba or NFS.
Still you got gave me more information about where you at right now. Did you got your TCP/IP network working already or can you use "ping" to ping each of your computer's address?
For this part, you need to use "neat" to setup a new connection if you haven't done so. then just select an ethenet card of yours which was working with your pc or you could see it in the process of adding an ethenet connection, using neat.
if you have a hub, just connect all cat5 cable to it.
after you done that,you should be able to ping all of your computers.
then you have to use "redhat-config-samba" to configure samba or you could just edit /etc/samba/smb.conf while which was just a text version of samba configuration file, if you know how to edit or write it.
You should be able to setup samba by read an document at www.redhat.com
about samba which was in the customization section.
then type "nautilus smb:" to check wether your samba config it's working or not. if you can't see anything but it told you something it's wrong. then go edit /etc/sysctl.conf and changed the first option which was net.pv..=0 to =1. then restart. then it should be working now.