How to use saves for Need For Speed Most Wanted:
1. Download desired NFS Most Wanted save file
2. Extract it, right click on Player
file and select Copy.
3. Delete everything from game save folder
and paste file there.
4. Start your copy of NFS Most Wanted and your new save status will load automatically.
Game save directory location:
C:\Users\USERNAME\Documents\NFS Most Wanted\Player\
For brand new game installation:
If you have a brand new game installation
(which means you didn't play game before using downloaded savegame), it is recommended to start the game, and exit right after the first event starts.
Do it before following the instructions above. This method will create necessary files within the game save directory.