First Journal Entry

Yeah, lame title I know, but it's my first entry and I thought it was fitting. I joined Mibba yesterday...or today if this is an American site. I think I'm in the process of switching from Quizilla to Mibba...I'm not sure yet, but heaps of people keep telling me that Mibba is better, so...

Obviously, being so new, I have a few questions.
1. When you add a new story, is it a one chapter deal or can you go back adn link other chapters to it?
2. How do the descriptions work? What do you write in each; short and long?
3. When adding tags, is it only for the chapter you're currently posting or do they relate to the entire story, in all it's chapters?
4. What's a layout?!

Okay, those are my BIG questions for now. I want to start posting! But until I have the ansers to these...I just don't want to stuff anything up in the long run.

And help would be immensely appreciated!

Love fairblue