Form to Extra Page to Archive?

[nickchrisless]

Ok I'm referencing how to make an extra page. But here's my longterm goal and #1 I need to know if in fact it's possible, #2 How I can go about setting it up, and finally if I can make it only accessible for those whom I allow.

What I want to do is this. I have a website where I have a staff of writers. They will be writing articles on various topics and submitting them. I'd like to have it to where all they have to do is go to the url, login, fill out the form for their new article (including the title, date, and body), and then hit submit and have it create a new page such as... /article43452.html

Do I have to create a template first? How do I get all that into the form? I'm lost, I can't code myself out of a paperbag. Any help, links, advice, tutorials, programming, whatever you can lend would be much appreciated. Thank you!