Nick,
I believe the game your refering to is not the same as the poster.
http://sourceforge.net/projects/crossfire#item3rd-2
He is trying to install a subagame called crossfire that is a first person shooter,only supported by windows.
that said,I tried every trick I know,and could not play the game.I could not get past the hacker shield that the game runs automatically. On a windows system it scans your drive for "hack"files(probably more too)to make sure you cant cheat.I did find that someone used it in ubuntu with a wubi install...........but if your going to do that you might as well run it in windows
not saying its impossible........I just cant find a way...........yet.Im still playing with it.