if at first you don't succeed, try, try again.
re-install the 3 parts, (in proper order) and see if it works this time. Wait until you get the prompt message that says ""... succesfully installed" and start next part of update.
If it doesn't work, then get back to us with some more info about your PC specs (OS, vid card, and RAM), how the mod doesn't work and whether or not you can make other BF2 games and mods perform.