Image : https://dl.dropboxusercontent.com/u/240227364/Screenshots/clanrooster.png Click the link pointed by the red arrow. An invitation will be sent to the directors and if they accept you will make parties of the clan and it will be displayed under your username in the game. Sorry I'm French, so the image the site is French but the picture it is easy to recognize the button in question ;) Good waiting for approval, I expect too ^^