Problem with image caption, Soho

I am trying to give my pictures a description, but the caption doesnt show when you click on the picture.
Right now the only thing shown under the picture is the page which the picture is placed in.
Another problem is that I also want to remove the footer widget on the last page. I have tried a couple of CSS without luck.
I’m using the theme Soho. to see example

I would suggest you to contact the theme author they know best how their item works.