I created a video a couple years ago demonstrating how to create multiple WordPress blogs using a single database and I still get lots of email asking various questions about that process. However, since the release of WordPress 3.0 and the merging of WordPress and WordPress Mu, that process is no longer needed. You can now create multiple blogs using a single install of the base WordPress code. Although I no longer actively create WordPress tutorials for the general public, I decided to do an update so that people wouldn’t be following the old procedure and unnecessarily uploading multiple copies of the WP code-base to create multiple blogs.
Note: The following tutorial is intended to demonstrate how to install XAMPP and WordPress on your local Windows computer. It is not recommended that you connect this to the web…this is a very insecure set-up intended for local (off-line) purposes such as local testing, development, etc.
How to Run WordPress on Your Windows Computer Using XAMPP — Part 1 of 2
How to Run WordPress on Your Windows Computer Using XAMPP — Part 2 of 2
How to Install a WordPress Theme Using FTP or Cpanel
How to Install a WordPress Plugin Using FTP or Cpanel
Note: See an updated video here: http://educhalk.org/blog/install-wordpress-multi-user-network-wp-3-0/