So first you need to know about namespaces. I know it sounds hard, but it's not.

A Namespace is a folder location where your page resides, much like how you can organize files on your computer using folders and subfolders, wiki pages are organized into Namespaces.

AGAIN:
NAMESPACE = folder
PAGES = files in a folder

You delineate a namespace by placing a colon after it:

namespace:pagename

in the URL address bar.

Therefore, to create a page just go to whatever you want to name it in the addressbar:

http://wiki.domain.com/doku.php?id=namespace:pagename

or

http://wiki.domain.com/doku.php?id=pagename

Then, simply edit the page and create a heading to get started.

====Heading====