It actually works for you? The install finishes, but then it doesn't find files that are in the proper place... I'll download it again and give it another go, maybe I'm just doing something wrong.
That's because you're installing it like a "proper" Linux program and placing it for global user-use (per your email...)- I'll explain more in my email sometime tomorrow (just got back in from being out of town to go see my wife...) but suffice it to say that currently, deviations from what it defaults to may not work right (mainly because it's a straight up port from Windows to Linux without helpful things like PhysicsFS wired into the game...). There's another gotcha that came through to me via Kano where I find out that a .so I presumed to be a "universal" one ISN'T and some distributions apparently don't default install it.
A new build will be out shortly, hopefully partially handling the problem you're finding, the one Kano found, and probably 64-bits.