INSTRUCTIONS ON USING NEED FOR SPEED CARBON SAVES:
As you may know, EA games made some changes in NFS (Need For Speed) Carbon so now you can't use downloaded savegames because they all have different serial numbers inside. That means that you should not upload your savegames because you'll distribute your serial number too. However, there is a walkthrough on solving this problem but you can not go online if you use this method:
1. Download desired Need For Speed Carbon save game file
2. Extract the downloaded file with WinZip or other similar software
3. Copy "APlayer" file to "%User documents%\NFS Carbon\APlayer\"
4. Use NFSC save editor to change serial number inside the save file
5. Run the game and load "player" profile.