How to make the Post Date appear below the post title?

Where would you like to make this change, on single posts or on the blog index? Is it the post date and author you’re trying to move, like “January 28, 2013 by Theme Buster” on this demo post?

First, you’ll need to set up a child theme, so your tweaks won’t be overwritten when updating the theme. Here are some guides in case you haven’t made one before:

http://codex.wordpress.org/Child_Themes
http://op111.net/53/
http://vimeo.com/39023468

Once that’s done and you confirm where you’re trying to make the chnage, I can help with the code if you need it.