Coldboot install 4.21.2 rex

I was wondering if anyone was having Problems with installing coldboots onto their ps3 with this CFW.

I used the static RAF converter (TizzyT) and made an image etc. and previewed it. Than I got coldboot installer 1.0(No other version on rebug website) and says RAF not found. So I try to do it manualy(Go into Dev_Blind-VSH-Recourses) through multiman and it freezes on me.

Any ideas/advice appreciated :D