You'll be not happy to hear it, but i think that Falkenbach demos will never be found (I truly wish to find it too). These demos were released in only 9 copies each and it's looks like that true collectors will not publish it...
I'm aware of that fact. So to speak, there are only 8 copies left, according to Metal Archives. Maybe the hope is gone, but nobody really knows when it happens. Also no one knows (except Vratyas himself) when Falkenbach releases official demo-compilation or like that. By the way, there are rumors that the new album will be published (if will be...) not until the end of 2009. Looking forward to hear more.