i'm rooted but using stock

Is this video from this link good enough for first time rooting? I'm sorry for being noob but would like to try.

http://forum.xda-developers.com/showthread.php?t=1705866

and how do check whether is there any update? cos  there was once they said there is something to update with 2 arrow pointing at opposite side with a tick under it. but i dint manage to download something it ask me to

Ok, let me try to picture everything. The whole process consists of unrooting + flashing a (custom rom).

CWM is something like DFU mode in iOS and in order to unroot, I need to put my device into CWM before using ODIN and CF-root to 'unroot'. In this case I will follow the steps here.

After this is done I will have the root access to my device where I then flash the (custom) ROM that I want (Wanam) and for this I refer to here.

Am I correct?

u using custom rom? G is 1st batch Sony, Z is other batch Samsung.

Hi all, if you flash a new rom(wanam 2.2) will it erase all your apps from stock firmware. Do I have to wipe cache,dilvak, data? Or I just simply flash the rom to phone without wiping all that. I did have wanam 2.2 then i lost all my apps. So i restore my ori firmware.

did you feel that the system sound become softer even its maxed out?

the water sound for system seems very soft...

Can anyone help me see what could be my problem?

Thanks, finally its rooted. Maybe I should linger around before deciding whether or not to flash custom ROM on it. =)
However, I cant find titanium backup apps on it.

Thanks, finally its rooted. Maybe I should linger around before deciding whether or not to flash custom ROM on it. =)
However, I cant find titanium backup apps on it.

good
no drain detected

I'm using. Don't notice any battery drain. As I type this battery is 59 percent. Since 7am with 1 hour of usage. Looks like a normal drain. Remember to use tasker with root and secure settings plugin for maximum benefits