I'm sorry to tell you this bro but the map editor is a PC exclusive.
If you want map editor on your PS3, I suggest you buy Far Cry 2, but its editor is very limited. But the game isn't that good either because it was developed by Ubisoft Montreal and not Crytek. So this means the game has been developed by French speaking Canadians. First Far Cry was the vision of 3 Turkish brothers, and we all know that Turkisch developers make way better games than French speaking Canadian developers. That's the reason why Far Cry 2 svcks and Far Cry 1 ROCKS! Ubisoft even admits that their game svcks at the very beginning by saying:
? 2008 Ubisoft Entertainment. All Rights Reserved. Far Cry?, Ubisoft and the Ubisoft logo are trademarks of Ubisoft Entertainment in the US and/or other countries.
Based on Crytek's first Far Cry? directed by Cevat Yerli.