OK, I dl\'d the Linux version, but how to I install it??  I\'m a Linux noob.

And do I only need the \"planeshift.tar.gz\" file and extract it?  And if so, how to I start it up?  If not, what else do I need?

I get this error in the terminal

 ./psclient-bin
no CEL environment variable set!
Warning: Failed to load `gl3d\'; use \'-verbose\' argument for details.
Warning: Failed to load `gl3d\'; use \'-verbose\' argument for details.
WARNING: could not load plugin \'crystalspace.graphics3d.opengl\'
aws-debug: Couldn\'t find iGraphics2D plugin!!
psclient: No 3d driver (iGraphics3D) plugin!


-UO