How to Install WoW Addons
- Download the addon you would like to install
- Create a folder in your World of WarCraft directory named Interface
- Create a folder in the Interface folder named Addons
- Extact the addon using WinZip (or similar program) to the WorldofWarcraft\Interface\Addons directory
- Launch World of WarCraft
- Login to your account
- On the Character Selection screen click the Addons button in the bottom left corner
- Check to see that your addon is listed in the table
- You may also need to check the box on the top that says "Load out of date addons"