f you have the means, I would highly suggest upgrading to an external Cisco 675, and plug that into a hub. It is extremely ease to setup, handles NAT and DHCP very well.
I know but they are strapped for money. I personally have installed Cisco 675's at about 3 locations successfully (really there is nothing to do to it) here Cincinnati Bell only gives 675's no internals for free and if you hang around for a year its yours to keep along with the NIC they give. I have shared it to more than 4 computers (675 can do 4 max) using a linksys BEFSR11 router. I have heard something about NAT, but not sure how to configure that. I think you know how to do it, if you can shed some light on how to, and will that remove the requirement of buying a Linksys router or Dlink etc as an added cost to connect to more than 4 computers??
thanks everyone for your valued input....