If you enter the island and the window does not open automatically, you need to open the app browser (shift+w) and click the Scenographic Editor icon. There you can start your first scene by giving it a name.
Further, check the screens here http://app.ryzom.com/app_forum/index.php?page=topic/view/26321/ or just ask :)
Further, check the screens here http://app.ryzom.com/app_forum/index.php?page=topic/view/26321/ or just ask :)