OK here I'm getting confused on trying to set up a block from the other users I only just want 2 computers getting on my wirless internet.. seems only fair I am paying for it... I tried to set up to where it can only set up on addy to my comp... and this is the part where I'm getting lost... I can get get it to one computer and the other would be able to work...

You have a few options.
1. disable DHCP, set all PC's on your network to static IPs
2. do MAC filtering: only allow computers with the MAC addresses that you specify

Of course you should always enable encryption - strong WEP or WPA.
You don't have to broadcast your SSID which may hide your network.

Here's a few sites for you:
http://www.pcstats.com/articleview.cfm?articleID=1489
http://www.windowsecurity.com/articles/Wireless-Network-Security-Home.html