How do I change box art, background image?

I'm enjoying the site redesign. It's very clean.

But I can't figure out where to change a page's header images. Can someone point me in the right direction?

To change the header image you have to have 1000 wiki points on a page that you want to edit. You can only change box art once you reach 5000 total wiki points.

@demoskinos: That's useful information, but it doesn't answer my question.

For example, I have a total of 23,523 wiki points with 1263 wiki points on The Sands of Time. Where on the page do I change the game's box art and header image?

@mercanis: Images page. Click edit. Select a image and the options should appear.