Curiosity has won and i have downloaded that.
Well, i also have one of the earlier Shattered Stars drafts, that were available on GitHub, that one was not even runable because of errors.
This one here let me into the game at least, even i was not able to go further the pilot selection, because i was informed about a missing campaign... and i can not select another, because there is no campaign room here. Even a placebo campaign file with the same name of that one, that is set in the game_settings.tbl did not work ^^.
So yes, the only thing i can use is FRED2... maybe it will work if i use this as a mod for FS2. Did not tested that.