Cook is a rank. I think you mean your friend joined the society of cooks. The society has it's own forum where you can sign in for lessons.

Yes, you are absolutely right. He has to joined the society of cooks. He will get the full information about anything. So, do not think more about it. Just ...

I think Maniacmath17 is fastest player in CC.

Yes, if you want new add-ons so you have to install Firefox 3.6 beta (Version 1) and Version 2 is also available. It contains many new add-ons so you need latest version.