To install XenForo, you will need to extract the zip and upload all the files
from the contained upload directory onto your web server. You may upload into
your web root, or any folder within the web root. This shall be referred to
as your XenForo Directory.
Having uploaded the necessary files, you should direct your web browser to the
URL that corresponds to your XenForo Directory and add '/install' to the address
(eg:
http://www.example.com/xenforo/install). This will trigger the installation
process, which will guide you through the necessary steps to get a working XenForo
installation running on your server.
Please note that the installation routine will direct you to ensure that the data
and internal_data directories within your XenForo Directory are writeable by the
webserver (ie: chmod 0777).