omg! i had replace the stock weather widget with the other widget. and i really dont like the new widget, its suck! please anybody where i can get back my stock wheather widget. help me

Click on and hold the widget you want to remove, wait til it turns into edit mode (you'll know), drag and drop into the trash can. Now just add the original weather widget back. simple

Cognition 1.11 is very smooth......villain 2.0 is nothing compare to it.:-) Just that same kies connection issue persist. :-)

No worry..Litening ROM wont wipe you data..all yours data will me remain.. 

Best u do a backup ..... I need 2 do a factory reset/wipe 2 flash into lite'ning coming from Balista70 ....Got stuck at the animation logo even after I have cleared both cache

I just flash Litening ROM only..no other thing..just after flash, I flash back stock kernel to remove the yellow triangle only 
Overall process less than 10 min 

If you have read Lite'ning Rom feature, it includes root. So you do not even need to root the phone before flashing Lite'ning. Just flash and you will have root and CWM.

Follow the instruction here..

I STRONGLY suggest you read my TIPS on rom flashing page 1 post #4. Based on the string of questions you are asking, you are just like shooting in the dark. Do make some effort understand the basics. The line of questions you are basically asking to be spoonfed - and that is not good.
And to answer your question - it has been replied and is very clear , why are you still asking about is it necessary to root ??? NO NEED - once you flash Litening it is auto root. And users here has already told you flashing this rom will not wipe your data - and you are asking again " need factory reset ". I give you my personal advise - it is GOOD to factory reset to have loess potential of bugs. If you want easy way out , which I see is most probably what you want - than no need . The choice is up to you