To use this theme, you will need a working WordPress.org installed on your website, otherwise, you cannot use it. Under most circumstances installing WordPress is a very simple process and takes less than five minutes to complete. Many web hosts now offer tools (e.g. Fantastico) to automatically install WordPress for you. However, if you wish to install WordPress yourself, the following guide will help. Now with Automatic Upgrade, upgrading is even easier.
Bizznis does not work on wordpress.com hosted websites and only works on self hosted websites that use wordpress.org as a platform. Domain name sometimes confuses users, but to sum up, .org is free and .com is commercial.