Can't play Custom Story at all... :'(

[Neaflys]

Hello everybody,
first ... I'm soooo sorry of my poor english but i'm french .. ^^' excuse me for that.

Well, I've got a problem with CUSTOM STORY ...
I've tried to create my own and it doesn't work, but, anyway ... That's not the most problematic.
I've got a MacBook Pro 13" intel core i5 2,4 Ghz (Maybe ?)
And Amnesia : The Dark Descent v1.2 (does the problem can be from here ?)
I bought the game on Frictional Game Store (NOT ON STEAM).

So, my problem is : I can't find any custom story in the launcher.
for exemple, I've download "Lost the Lights" ... I but the folder which contents all .lang/.cfg/others...
in the Custom Story folder in Amnesia's ressources. And I loading the game and I can't see the name of custom story. ANYTHING !
So ... Somebody to help me ? Maybe that came from 1.2 version or Mac os X (hope not :'( )

Thank you for your help and sorry for my english ^^'

Neaflys.

P.S : I made a screen to show you what I done.
This is in Amnesia.app [right click => show the content of package (or something like that in english I don't know ^^')]


Did I just make something wrong ? :/