trauma

can anyone please help me?? i finaly come a cross this game for pc. i instaled the game and try to play the problem is. after a short perriod of loading iam asked to isert disk one- i do so and gett a warning-(wrong disk) i hawe tryed all of the other disks and the same happens?? i hawe a pentium 4 1.6 ghz. 512mb-ram. and geforce 4 tittanium-64 mb-ram. my os i s windows xp. please help me??? trauma@spray.no