okay … here is how it works:
usually you write your startpage where you say "hello" and explain what this is and what can be done/found here …
(you find it on the left side in the side bar)
than you begin to place links to special sites - where you explain e.g. the arena. (on the startsite or on an index)
there you write:
sandbox2 and it will bring you to a new site called "Sandbox2"
it's not created yet and therefore gray
a special thing to make all more complicated are the different languages - for your language you have to place an "est:" (I took that for "estonian") in front of the linkname
as you can see - there is no difference - only in the edit-mode you will see that
look at the bottom of the box - there should be a "edit"
click on it :-D
okay … next step … tutorial
after the tutaorial and playing with the sandbox you should be able to build own sites, like pages of a book
just look what seems useful or important … some things will be changed by the new Gondal-staff, but the main princibles should remain as they are…