this cfw is not for everybody, I do not recommend installing it unless you have a hardware flasher.
my understanding is it is designed for french jailbreakers.
if you are a beginner go with rogero or rebug.
it is interesting because it is a true 4.31 cfw from what I have read, it is however of no use to me, I speak english and don't want to test it because I don't have a hardware flasher, I myself am using rebug 4.30 and its all personal pref.
PS3 SLIM - 3.50 OFW> 3.55 OFW> 3.55 GEOHOT CFW> 3.55 WUTANGRZA CFW> 3.55 KMEAW CFW> 3.55 REBUG CFW> 3.55 JB2USB TB CFW> 3.55 REBUG TB CFW> 4.21 ROGERO v1.00> 4.30 ROGERO v1.03> 4.30 ROGERO 2.00> 4.30 ROGERO 2.03> 4.30 REBUG >4.46 REBUG > 4.50 ROGERO v1.01