First of all, take a deep breath. This happens sometimes. Make sure that you copy ALL of the files your game needs, and make sure that they are in the files directory of FPSC. This means that you cannot use an image from another folder outside of the FILES one in the program files directory. Once all of your media is in order, and you are still having problems, the simple solution would be to go into the game's properties. (right click on the folder and make it non-read-only.) This applies to everything in the folder, including the .exe. I wish that I could help more, but I don't even know if you are using vista or xp. Could you please post the specs of the pc that is giving you trouble? Hope this helps.
Hybrid
P.S. Welcome to the forums.