When logging into the application, you can always sign in using the auth.atomized.com log-in page. Once you've navigated to the site, you should be presented with log-in fields for your username and password. Put those in, and you should be good to go!
Sometimes, we forget our passwords - It happens to all of us! Luckily, if it happens to you, you can always reset your password by clicking the 'Forgot Password' button on the login page, and entering in the email address associated with your user account. You will receive an email shortly thereafter, which will allow you to set up a new password for your user account.
Once you've logged in, and as you navigate throughout the site, you'll see navigation rails at the top, bottom, and side of your screen. These rails each have a name, and function.
The Display Rail is available when you have selected a campaign, and allows you to select your canvas view, date range, and segments. This rail's purpose is to allow you to customize how you're visualizing your information to help you look at exactly what you're wanting to work with.
The Data Rail is displayed on the left side of the screen, and lists the campaigns you have access to view. You can use the Data Rail to select or merge campaign datasets, which will display all of that campaign's data in your canvas, or can access Campaign options by hovering over individual campaigns.
The User Rail is displayed at the bottom of your screen, and allows you to access user specific information like your profile and notifications.