ok, while I don't have new Leviathan and can't seem to find it. This blog has a lot of stuff I think you'd be into.
http://asabay.blogspot.com/
post by brian_dc at Jan 24,2007 6:50am edited Jan 24,2007 6:50am
also, this link says "leviathan demos.rar" for the file. so maybe give that a shot...but it could be demos for anything really.
http://www.megaupload.com/pt/?d=BSJXWJ9S