Copy class,common,conf,language folders and common.php into your project's folder.

Create log, template folders in the project (folders' name can be changed in config).
And set log folder writeable.

And coding this:

// session start
define("SESSION_ON", true);

// define project's config
define("CONFIG", '/conf/web.php');

// debug switch
define("DEBUG", true);

// include framework entrance file
include('./common.php');

Or not, keep reading datebase or template page.