Installing the GoSquared Extension for Magento using Magento Connect is easy.
Go to the GoSquared Extension page on Magento Connect :
Login to Magento connect and click "Install Now".
This will let you select the Magento Connect version (newer versions of Magento will require Magento Connect 2.0).
After having read the licence agreement, check the checkbox to agree and you will receive your extension key.
Copy this extension key to your clipboard or leave this page open.
Log into the administrative backend of your Magento installation and go to "System > Magento Connect > Magento Connect Manager".
You will then be asked to login again to check for authorisation to install extensions.
Simply paste your extension key from step 2 into the box provided and click "Install".
Navigate to your admin backend and login if you aren't already logged in and go to "System > Configuration".
In the sidebar select "Settings" under the "GoSquared" heading.
Paste your GoSquared Site Token for your website (which can be found at http://home.gosquared.com/developer) into the input area provided. Note that it will start with "GSN".
Configure the extension by selecting how you want users to be tagged within the GoSquared interface interface and by selecting whether or not you wish Magento admin pages to be tracked.
Click "Save Config" to complete the process.