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.

I was waiting for the user to respond to me before I reply. He was making a generalized statement which is misleading. ANyway here is my understanding . First and foremost I am not an expert in such stuffs - this is based on my experience flashing the first Galaxy S and Galaxy Tab and present Galaxy S II.

PIT stands for PARTITION INFORMATION TABLE. The pit file basically tells Odin how to divide the partitions (for formating) and also where certain components ( PDA, PHONE, CSC ) to go when flashing them individually. PIT understanding is very crucial when you wish to flash roms from samfirmware.com , one place I always discourage new users from attempting as it is a trap to bricking a phone if you do not understand what you are doing

Cooked roms take cares of PIT ; you rarely see cooked roms asking you to choose PIT during flash thro Odin. Most cook roms, the developer has built in his rom the PIT instructions

For example, in the samfirmware.com Galaxy S site, you can even see different types of PIT listed and a warning that you choose the right PIT file. In its SGS II site, If you look at samfirmware.com - there is a default PIT file you can download at the top box just above the list of firmwares for different regions. If you download any of these official roms, you will see some roms comes with a PIT file and some does not. You asked a very good question, why is the PIT included if is of no use ?
My advise is simply this : If you see a PIT included in your rom, choose it during flashing as most probably the PIT is a changed version from default. You can only use this PIT to flash with the rom that comes with it. You cannot take this PIT and used it to flash another rom - this will brick your phone. When you use a wrong PIT - you have 2 possible scenarios :
- failed flash and phone cannot boot
- flash OK but the whole internal SD is formatted and cannot be detected at all by phone ( my experience with the Tab)

If the rom downloaded does not supplied a PIT file - than you just flash it without it or you choose the default PIT

As the PIT name implies, using PIT basically repartition /reformat your whole internal SD - once you select PIT, you will see repartition is auto selected. All your data in the internal SD will be wipe clean

You can choose NOT to select the PIT during flashing if you wish to have your internal SD intact. I cannot say whether you will have a successful flash. If is successful it just means your present rom PIT is similar to the rom you have downloaded. If is unsuccessful, just flash it again and select PIT

Read this post if you wish to know more. The writer similarly points out about the false/wrong understanding of many users about using PIT
http://forum.xda-developers.com/showthread.php?t=999097

that one i faham. but do u know the reason why it was included?

so just flash? no need to root?

i just got mine today leh ...
pls add me too lists.less..

that one i faham. but do u know the reason why it was included?

oke firstly i must do root for my phone rite? then i flashing with Litening_Rom_v2_0.tar.md5 file tick at pda rite? after that flashing again use PDA_I9100XWKF1 file to remove the yellow triangle? only PDA file rite? not csc and moderm? sorry asking a noob question.

Follow the instruction here..

I do search around and google around but cannot find Chaimfire CF4, where to download?

how to remove the yellow triangle after flashing the rom? reflash back to the stock kernel? just select pda?

but im now on stock rom. need to factory reset too??

Hey guys, believe it or not, I kinda miss CelcomAxiata now. Nobody to argue with.

yes normal. last time i use garmin with nokia also lots of heat but sgs2 is hotter 

Bro, this is very normal & happened to any smartphone nowaday, don't panic

Yes, due to the slimmest design..slimmest in the world..and the powerful 1.2ghz dual core processor..
But it's warm..mean the material itself is radiating 

thanks bros, coz migrated from nokia with garmin, compare with it, S2 is hotter 

Anyone know how to set default homescreen at page 4?

I used to make it when I am using DXKF1, but after flash XXKG1, this method no longer valid

under
/system/default.prop
ro.csc.homescreen.defaultscreen=3

Anyone can teach me any new method?

I don't use TouchWiz at all ; if not I will answer you . You are repeating this I think the 3rd time already today. WHy don't you exercise initiative and google solution on the web  instead of repeatedly asking here - try fierst XDA ???. I will do it and I will see whether I can find an answer for you out from lowyat