have you got nokia pc suite set up on your computer m8 ??
all you do is open the application you downloaded and it should automatically open the application installer on the pc suite. then just follow onscreen prompts.
1st , upzip file to your pc , then use your usb cable from your n95 , connect to fone & pc and when prompted open in mass storage , just drag fifa 08 to any of the folders then once on fone unplug from pc , then on fone got to folder u put the file and install , easy peasy lol