Area 51 no cd exe problem !!plz help!!

[lightspeed]

hello everyone i installed area 51 and played it with my cd. but i allways use the no cd exe because i get burned out on games fast so i go back a forth to other games that i have well this is the first time having trouble with a no cd exe. this is what i done and what it is doing i install the game the it says to finish the install restart so i do. then i get the no cd fix from gamecopyworld and move all the files to the dir. of the game. then it ask do u want to replace the files that are the same i say yes. then i close everthing down go to open the game and it just brings up the hour class for a sec then gone thats all it does. am i doing something wrong with it? i updated my video drivers and i have a 256 geforce 5500 fx card so if you have any ideas plz help thank you