The system is VERY simple to download and use. Simply buy the latest version of the extension here then in the right menu you will see a link which says "My Downloads", in here you will see the latest version to download.

There are instructions here to install the Plugin and Component.

There are instructions here to create a Google Merchant Account

There are detailed information here to explain each of the Attributes and how to use them.

1. Buy the extension, you will be given access to the download area, which will also give you access to the latest version as well for upgrades.
   
   
2. Install the zip file as you download it, it will self install the component "Google Base" and plugin "Virtuemart Froogle" at the same time.
   
   
3. Once installed, you will find the component in the administrator area - "Components > Googlebase" and the Plugin in "Extensions > Plugin Manager > VirtueMart Froogle".