The first thing you will see when you log into the Web Editor is a prompt to create a contact page. Click the Edit Contacts button. You will see a generic contacts page with filler text, fill the cells with the correct information for your department. Don't worry about the Headings and Links in the left column until you start building the homepage.
Update your contacts often. It is important to have correct and current information posted under contacts so that those who have questions after visiting your site know where to go for answers.