Empty Space In Theme

I would like to get rid of the empty space in my right column. And, if there is empty space in the story area, I would like to get rid of the empty space as well. Basically, there is just a blank area with the background color.

Site: http://colossusofcomedy.com/

Under the right column you can see what I am talking about. Is there a way to get that block/colum to stop under the last entry/selection? Same for the story space.

Thanks for any assistance.

tss