Internet Setup Assistant
The easiest way to set up an Internet connection (modem or cable/dsl) is with the Internet Setup Assistant. If you have never connected to the Internet, this assistant will run automatically. After that, you need to go to the hard drive to find this assistant. You can find this app on your hard drive at - Hard Drive\Applications\Utilities\Assistants\Internet Setup\Internet Setup Assistant.
I found it by opening Sherlock2, typing in Internet Setup Assistant (see screenshot) and running it that way. Either way is fine. For a walk through of the screenshots we will use Sherlock2 and double click Internet Setup Assistant to begin.
Clickable Areas:
Internet Setup Assistant and Close (upper left).