The Social Mouse Grid is undergoing an update, and so signup for new accounts is currently disabled.
Name is how other users see for you on the website (forum activity etc.) It can contain spaces e.g John Smith
Your Username is only seen by you and is just used for login.
Your Password must be at least 6 characters long and contain at least one number and one uppercase letter.
Date of birth is used to age verify you so you can access regions with an adult rating.