To install any Ray widget read carefully the following text.
Every widget package contains the next elements:

1. “ray” folder contains the basic files necessary for Ray operation as a whole, and an installation interface for detached widgets. Copy the folder to the server, for example, to the public_html folder and run instalation wizard. following the next URL: http://www.your_domain.com/path_to_ray/install/index.php. Don’t forget to replace your_domain and path_to_ray with your site data. 
If one of the Ray widgets has been already installed you may omit this action. 

2. “[widget_name]” folder (for example, chat) contains this widget files. 
Copy this folder to ray/modules/. Install this widget via Ray 3.0 Base following the URL: http://www.your_domain.com/path_to_ray/index.php?module=global&app=admin&nick=[admin_login]&password=[admin_password].
Don’t forget to replace your_domain and path_to_ray with your site data. 

3. “license.txt” file - license agreement. You should thoroughly read it..

4. “readme.txt” file - this file.