The first thing to do is to login. Then you get a lot more options.
You can read more about the Forest WIki.
After you register your own account, and give yourself permissions, you may want to delete the admin user. To assign yourself permissions, you have to be logged in as admin. Then go to the people manage menu, click on the edit column for your account, and you will be able to assign yourself permissions.
If you have any questions, then please send me an email.