Just bought the theme, a bunch of questions

Just bought the blackfyre theme and I have a bunch of questions . Hopefully someone can answer here.

1.) The clan creation page can only be accessed if you are an admin right ? Or the admin set a username / password to someone.

For example > if a clan wants to join and clicks sign up, why doesn’t it work? Or do I need to manually create the username for that clan so he can edit it ? Or only the web admin can edit the clan ?

2.) Where is the registration page? Or is there some kind of registration info in the visual editor ?

3.) I want to create a full width slider for the homepage, the blackfyre slider doesn’t appear. What seems to be the problem ? Or what visual composer element do you guys recommend ?