Support I want to root my Galaxy S (Korean Anycall Version), before I do I have some questions.

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http://androidforums.com – http://forum.xda-developers.com/showpost.php?p=26402069&postcount=4411 I found the above link and I'd like to know if it's legit. From what I understand I need to run Odin with the Tegrak Kernel and it will do everything for me. Is it as simple as that? After doing this will I be able to overclock and use apps that require root? Is there anything I should do before I root and what are the risks using this procedure to root? Will I need to make a backup of my phone before I root? If so, what is the simplest way to backup my phone and restore it later. What can I do in case this brick (General)