Thanks for the welcome!
Well, I tried removing all the network stuff and nope doesn't work. My uncle called his ISP and that was exactly the same thing they suggested...remove all adapters and protocols from the network properties box, and then re-install them.
Is it possible that the downloaded program changed some driver, or setting that could cause this problem? Because the internet is working, and they were able to sucessfully ping from the computer. But said something about it not being able to recognize domain names.
I'm going over to my uncles house tomorrow and see if I can check through everything myself. As I had trouble helping him over the phone. The reason being I've worked the problem out on a Windows XP machine and on DSL! But haven't worked on a windows 98 machine in a while!!

Also it's a cable modem setup which is a little different from my router/DSL setup.
Anyways, thanks again for the help.
Tim