Basic Site Installation:
This is installer will write you basic site information and create your database. Other site settings will be done from the site admin area.

Database host:		usually localhost
Database name:
Database username:
Database password:
Site Title:		Your Job Site (no apostophe's or quotes)
Site Name:		yourjobsite.com (no apostophe's or quotes)
Root Url::		url to the location where your jobsite is. No trailing slash. (/)

If you are not sure about the above database variables and their corresponding values, contact your hosting provider.