1. Unzip the contents of the file and upload directly into /public_html
2. Log into your cPanel > MySQL Databases > and create a username and database for WPMU. Then add the username to the database and grant all privileges.
3. Now go to
yourdomain.com and you will see an installation screen. Fill in your username, password and database and continue.
4. You should see a successful install and next it will tell you to set permissions on two folders.
5. Now log into your admin panel and go to Site Admin > Options > and select
Enabled for all. Blogs and user accounts can be created.
6. Now test if creating blogs works. Go back to
yourdomain.com and choose Create a New Blog.
It should work fine!