[HELP] I've CMW 6.0.1.2 and I want to install AOSPA 3 topic

I have a SGH - i777 galaxy s2. The phone is rooted.

I've CWM 6.0.1.2 (very old :p ) and I want to install this rom:

http://forum.xda-developers.com/gala...9-rc2-t2397762

But I saw this youtube video and at the begining the youtuber says that I need a NEWER CWM version to go for KK roms.

I dunno what to do. I'll appreciate your help.