Archives & More Articles Description

Hello,

I’m trying to figure out how to set up the archives page (not the widget?) in the oxygen theme. I can’t seem to figure out how to get it working.

Also!

On the front page under more articles it displays a description of the categories linked to that article. Is there a way to change this to a short snippet of the article, similar to the way the recent article description is.

Thanks for your help!