Questions, I need some answers!

Okay, I have some questions. Well, actully a lot of questions. But first things first.

First, on the page where you write your new posts, under the title bar, there is a link bar. What do I put in there? I have read every artical, and watched every video that they have in Help. I can't find out what to do with it, or about that link bar. Can some one help me?

Second, just below the links bar is "Add enclosure link". What is that? Is that what I would click on if I wanted to put a link in one of my posts? Or is that the one on the tool bar?

Where is spell check? Or doesn't this have it? Oh Lord. If this doesn't have spell check, I am in for one bumpy ride. And you the reader, if I have any, will be going crazy trying to understand what I'm saying. So far I have been typing my blogs out in another program and copying and pasting them. But I may not to want to do that all the time. What do I do? How do I get spell check?

Third, I think I understand "Post Options" and have them set right. Then there is "Lables:" In my last posting, I put the title in there because that is what that post was about. Did I do Right? And what is the "show all" click on thingie about?

And one last question for now, if some kind person does answer my questions, how will I know? Will they show on the blog page? Or do I have to go somewhere else to see them? If so where?

Like I said before, I learning and trying to figure it all out. Thanks in advance for your help.