You can use the built in installer and upgrader, or you can install the plugin
- You can either use the automatic plugin installer or your FTP program to upload it to your wp-content/plugins directory
the top-level folder. Don't just upload all the php files and put them in
- Activate the plugin through the 'Plugins' menu in WordPress
- Visit your login form options
- select your desire theme and then save it,as soon as it saves it becomes active
- That's it!