blondieblue227 on "[Theme: Expound] can't see bottom 3 columns"

http://ivykennedy.com/home2/

i'm a wp newibie.

the bottom three columns are not on my site.
how do i get all the posts from a category listed with the category as a title on top of the list? (in the three columns)
for example: http://www.ivykennedy.com/trash/Screen%20shot%202013-06-08%20at%204.58.53%20PM.png
Concerts being the category/title, ticket stubs, pearl jam, met gavin rossdale as posts.