ToME: the Tales of Maj'Eyal

First, I'd like to say calling this the Dumb Questions board is brilliant. Now on to my question. Beyond unlocking the Arrena in Derth, is there something else one needs to do to get the Arena to show up when you start a new game? All that I see is T.o.M.E. on the list of games when I select new game.

It should appear as a new campaign option at the character creation screen.