Visit the signup page to get started and create an account for a team.
Once you have entered your email address, press the "Create your team account" button. You will recieve an email within the next few minutes (usually instantly) that contains a link to create your team account, click this link and you will be taken to a page to enter some details about you and your team.
Be sure to complete the form, there are a few tips to help you out, and make a note of the team web address that you have chosen. When you click the "Create your new account" button, you will be automatically logged in and taken to your team account. Your team account is now ready to use.
After you have created your team account, you will be sent an email containing your team web address - it is useful to add this to your bookmarks/favourites so that you can find your way back quickly.