...
- Download the Auto-Upgrade module this URL: http://www.prestashop.com/download/autoupgrade.zip . Save the Zip file to your desktop.
- In your PrestaShop administration panel, go to the "Modules" tab.
- Click on the the "Add a module" button", located at the top right of the list of available modules.
- In the form that opens, click on the "Browse..." button, then find and select the module Zip file that you just downloaded.
- Click the "Upload this Module" button. PrestaShop will put the module on your server, unzip it, and place the files in the
/modules/
folder.
...