After software installation by default two users available, demo and administrator. To access all software features including Control panel you must login as administrator.
If installation process was done correctly, as described in software installation, you should be able to access web application by using your domain name.
In login page enter login and password.
After login you will see user interface. User interface allows to manage and monitor objects, view history, reports and create sub-accounts with limited privileges. Learn more here.
To access Control panel, click CPanel menu item in Account panel (top right corner).