Default [Q] Installing new MIUI version

Hey all,

Somehow i couldnt reply in the thread about the rom i want, so i'll try here.

I want to update to this rom: http://forum.xda-developers.com/show....php?t=2689304

I currently run MIUI-3.8.2 (android 4.1.2 MIUI v5 Beta 3)

I want to keep all my contacts and apps, is this in any way possible? Can this be achieved by just a CWM recovery mod backup or should i use another app?

Sorry for my noob questions but when i search for my own answers i get soooo much info at once i just cant get the right answer out of it..

Thanks, Zaxxo

Edit: im on a i8160