for your domain name and server name you should enter: 'localhost' (without the commas) in both cases - did you do that?
The way to test that you have installed Apache correctly is to go to Start/All programs and select 'Start Apache' from the Apache group. You'll see a command prompt window open - it will remain open as long as Apache is running. Now launch Internet Explorer and type: localhost in the address bar. If Apache is correctly installed you should see the default page appear.
Post back here if you can't get to this stage, and we'll try to sort it out.