Adding Author to Posts with PCLady

Greetings.

It has been brought to my attention that since we switched to the PCLady theme, no post is showing its author. I was wondering what code I would have to input into which file/page for the author names to start showing; my site has multiple contributors and we really want to make sure people know which contributor has written what.

Thanks!

And I accidentally hit the solution link - this isn't resolved!