Thanks, i flashed it now and am currently installing the power kernel. Now i wanted to install cssu thumb directly, but it installed cssu testing.
perhaps because i forgot to add extras repo.

do we need to use mirrors of nokia/ovi too?

Okay, so I guess because I have power kernel, uname -a won't show me the cssu thumb kernel.
But why do I not see the thumb thing in Settings->Community SSU?
If i want to install cssu thumb, it only says community-ssu-enabler already installed.