Posting a block into XenPorta -FIXED-

Hey, I was wondering if you could put a block in xenporta to be able to cover the left and right of the page?
Heres what I mean:

In this image, I can only put the block "Recent News" on one of the sides, Top-Left, or Top-Right.
Heres a picture of my website:

As you can see, the post only fits on the left side of the page, I want it to fit on the whole page.

Any help would be appreciated!