This will add the option of Google Checkout to your site. It's a Level 2 integration which means that the site will send shipping rates to Google in real time. It will also create customer accounts and create the order for you.
You must have LibCurl and DomXml available on your site along with SSL. It will not work without those requirements.
The installation is very simple(only 1 file to edit) and most people should be able to get it up and running in 15 minutes or less.
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