Right now, its fairly simple to add content to this site.
Add the creator
Add a page for the creator, i.e. the person who wrote the punk story. The category is "creators:" so to create something for "dmoonfire", create a page called creators:dmoonfire. Put a little information about the creator, if you have it, including their website or contact information (they want to share).
Add the story
Stories are in the "story:" category. So, to create a story, come up with a lower-case name (change spaces to "-"). So, "A Simple Cog" would be stories:a-simple-cog. The name is less important than the title, so you could use "stories:a-simple-cog-2" for a different story of the same name.
Link the page to the creator
At the bottom of the page, there is a "+ options" link. Click on that, then click on "parent". Set the parent page to the creator's, so "creators:dmoonfire" in the above example.
Assign some tags
Every story should have a tag of at least one type of "punk" associated with the story. If they don't have one, they probably shouldn't be here, but we aren't picky. If you have a specific type, just add it. If you have more than one, just add it.
Add any tags for contests or collections.