to share an internet connection you just need an ethernet cable, on the main computer that is connected online turn on internet connection sharing
go to network connections right click your main connection go to properties and i think its under advanced... i do believe its the last tab... but you will find it under properties in your connection
then just plug the other end of your cable from the main pcs network interface card (nic) to the other pc and it should get an ip from the other computer
i do this all the time from my pc to my laptop and it works great if you want to share files you will have to turn on file and printer sharing as well if you need help with that i can help you later or hopefully someone that isnt at work and at a pc can help you sooner
good luck
Do this but make sure you have the right device selected this is how I get wireless internet for my xbox without buying the adapter
