How to work with Yii framework or how to put the CMS website with Yii framework?

Given the work site. It is written on a hosting site that is not installed CMS. 2ip.ru wrote that wordpress uses, but he did not find any mention of it. Found in the files that it uses Yii. On hosting 3GB of memory and all photographs that are engaged in the folder Assets. The site itself: http://ift.tt/1Nr70LB Tell me how all of this work to put any GUI, like the CMS.

I am interested in, and how to put a better CMS. so that you can edit to add news, and now it is not clear where and how to do it, or tell me how to work with what is there?