Unhappy [Q] Help XPERIA P LT22i

Hello guys ... i really want to install HONAMIMOONWALKER V8..
but there are F.A.Q like this: (and answered by Pandemic)

Q: My network name stands under the clock, like this:
Howto fix?
A: Just back up your UxpNxtLockscreen and push it again manualy with right permissions into system/app and reboot
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Q: My Xloud dont work and sound is very low, how to fix?
A: Untick and tick XLoud and turn also Clearphase, It gives great sound on V8
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Q: SystemUI Fc`s What todo and howto fix?
A:At first i thought it was small app related so i remove all small app stuff. Then it was ok for a day. Then FC again. I push back all small app stuff(i backed it up) with correct permissions (see screenshot if not sure how to set) and reboot. No more FC (at least up till now when i am writing.). Hope this helps. If it FC i just give it a reboot.
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I NEED YOUR HELP GUYS.
1. HOW DO I BACK UP UxpNxtLockscreen and HOW DO I PUSH IT MANUALLY IN right permissions into system/app and reboot?
I DON'T UNDERSTAND WHAT IS PUSH IT MANUALLY..
Can u pleasssseeee give me a tutorial how to do that? plsssssss...

Please help me guys.. THank u soo much..