Download and unzip the installation program (install.php) here.
You can also copy and paste the code from here onto a file named install.php.
Upload install.php into a desired folder on your webhost. Run install.php and click on button. If no errors encountered w-CMS should be ready to use.
If you wish to install w-CMS yourself then simply download the package here, unzip it, and upload all the files and folders to a desired location.