Yoast Canonical Links Module

The following is a guide for people using the Yoast Canonical Links module on their Magento site, but are also using a custom theme. Using the Magento Connect Manager to install this module works fine if you are using Magento’s default theme, but if not it will not install correctly and you’ll likely see errors involving the permalinks to your pages. This because the required template files have not been inserted into the right folder.

The best course of action is to download the files from the official site, and upload them manually via ftp. This way you can be sure everything is in the correct folder.

The webpage download is here: http://yoast.com/tools/magento/canonical/