The easiest way to install Poodll's MiniLesson is to use Moodle and Moodle.org’s automated install feature.
Go to your site’s plugins installer . Your Moodle site has a handy system for installing plugins automatically by connecting to Moodle.org to download them. From the site administration menu, go to:
plugins -> install plugins
Choose to install from the Moodle plugins directory.
If you are not already logged into Moodle.org, you will need to login.
Then search for "Poodll" in the “search plugins” bar.
From the list of plugins choose "Poodll MiniLesson." On the next page you will see an “install” button.
You will then be shown a list if your Moodle sites, and you should choose which to install on, and press the install link.
After that Moodle should lead you through the plugin installation
Poodll MiniLesson on Moodle.org
If you wish you can start the above installation process from Moodle.org, just visit the Poodll MiniLesson page on the Moodle plugins directory and click install: