Begin by visiting the administration area here:
Go to http://yourwebsiteaddress.com/admin (Change yourwebsiteaddress.com to your domain name)
Be sure to change your password after the first login and keep is in a safe place that you can remember.
Once you are logged in you will see the welcome page with the menu options across the top.
*On the left you will see the quick navigation menu to add events or update the Skin or look of the site.
There are menus for Modules, Editable Pages, Meta Tags & Security. Each of these will be covered in separate articles that you can access here: