How to edit My Profile?
Go to Setting, choose Profile. There you can change your Profile Picture, Display Name, and any other data about you.

How to set Privacy on this site?
Go to Setting, choose Privacy. You can choose who can see your Profile Page, your Blog, Photos, and Videos, and so on. You can also choose to moderate the comments on your blog, photos, videos, and so on.

How to Set Email Notifications?
Go to Setting, choose Email and now you can choose what email notifications you want to receive.

How to Change your theme?
Go to Setting, choose My Page, choose Appearance to change and design your own theme.

How to integrate your Facebook, Twitter, Google, and Yahoo with this site?
Go to Setting, choose Connections and choose what account you want to integrate. You can also choose to sign in with Facebook, Twitter, Google, and Yahoo.

How to disconnect to chat？
There is an option button, choose to be connected on chat or to be disconnected on chat.

If you have more question, please comment here!