*Edit* I did check your links.  All the answers are freely available on other parts of this site.
What I mean is, just check out the FAQ on the main page and here and you should not have any more questions like these oft-answered thrice-stickied type questions.  Also, there is a search button at the top of every page on this forum.  I would start with the FAQ.  
Good luck.
Cheers,
KenToad