To login, you must first disconnect your device from any existing accounts!
If you are unsure how to do this check out the "How do I log out?" FAQ.
Once this is done you will see the New Account Screen!

How to Login?

STEP 1 - Tap the Login button on the New Account Screen.
STEP 2 - Select the Login method you would like to use.
login choice

Login with Facebook

When you select this option it will automatically log you into the PIMD account associated with the Facebook Account you are logged into on this device.  Please note, this will only work if you have previously attached a PIMD account to your Facebook.

Login with ATA ID

When you select this option you will be taken to a Log In screen where you must enter your ATA ID Email.
login screen
If you have a ATA ID password setup.
Once you enter your email and hit Login it will take you to a screen where you enter your password and complete your login!
login and password

After you put in the correct ATA ID and password, a verification code will be sent to your email address! You will need to put in the correct verification code to complete your login. 

If you forgot your password.
Select the "Lost password?" button to be taken to this Link where you can reset your password via your email.