showcase theme use

I've installed showcase on a test site to learn the ropes. I've put the correct path to the images, but they don't load (the image area says "Loading first image" but nothing loads.

Second, how do I configure the three post options below the sliding header? Under the "showcase" option just has general, footer, and slider info. But where do I put info about what categories should go in the three spots. Is it possible to put pages there instead.

The widgets aren't showing up either. I do currently have the set up in a different directory, but its working otherwise and I put the correct path to the pictures.