@aakib
In previous PS3 firmwares it was possible for users to transfer PSN games from PC to PS3 using proxy settings. But even for that to happen you have to start the download from PSN after purchasing the game. Activating the game on a particular PS3 is more important than having the game on PS3 HDD. So there is no such thing as free PSN games on PS3. You have to pay for all of them to be able to run them, even if you somehow transfer tham to PS3.
And use the Official help thread in future.