The pictures say it all!
Back-up the default folders.
Unpack the zips and follow the instructions (that is, replace the original files in question).
If you have questions, try asking Chris here: http://www.gearslutz.com/board/logic-pro-x/857146-custom-logic-x-guis-thread-39.html
EDIT: A minor bug in the theme (text in some search fields not showing) fixed in this update: CB_MAResources_Fix1.zip