I need help with 'last post by' on index

[shibby2]

I have the Aria skin from vbstyles.com. I love the skin but want to change one thing about it.

On the index page where it displayes the 'last post by', it is in a weird sport (under the forum title). I would like it to be in the normal spot, in its own column to the right of the forum title.

Which file do I have to modify to do this?

Thanks for any help!