I actually started breaking down the main page into categories. It's a little different than the forum, but on the left side of each page is a Help link that leads to a Help: Contents page. You can get help there for starting pages, formatting, uploading pictures, etc. And if you run into trouble, just leave me a message here.
If you want to play with it a bit, just start a "sandbox" page and jump in. To start the page, go into edit mode and type [[Sandbox]] somewhere on the page. Then save the page and click on the new Sanbox link. It'll take you to the new page in edit mode.
Did I confuse you yet?
I went ahead and created the page. Here's a link, and when you get comfortable with it, jump right in.Wiki Sandbox
Oh, and remember, you need to sign in to the Wiki still, or even create an account.