SVN NOW AVAILABLE AT:
https://google-checkout-oscommerce.googlecode.com/svn/trunk/

ZIP VERSION:
http://code.google.com/p/google-checkout-oscommerce/downloads/list

BEFORE INSTALLING / UPGRADING:
Read the README, UPGRADE and INSTALLATION documents. And CHANGELOG.

Also see an additional readme concerning the shipping generator
/googlecheckout/shipping_generator/README

FIRST TIME INSTALLERS:
Be sure to read the README and INSTALLATION documents FIRST!

BACKUP:
If you are upgrading, before doing so:
1. Backup all your mod files and customized templates files from the
current mod version you have installed.
2. Backup your settings in modules > payment > googlecheckout
3. Backup your shipping (mc arrays) configuration (recent versions in
shipping_methods.php. Previous versions in the payments module file).
4. Backup your response message and error logs.

OTHER RECOMMENDS:
And for all and as always it is recommended before installing that you
backup your OSC shop directory and database.

It is recommended installing this mod on a test/demo shop and testing
in sandbox mode (and if possible in live production mode) before
installing on a real live shop.

Test your shipping configurations completely BEFORE going live. Please
review posts on discussion forum to help troubleshoot potential
shipping configuration issues (for example limiting number of shipping
methods and options in shipping_methods.php).

UPGRADING:
Read the README, and UPGRADE and CHANGELOG documents.

It is recommended that upgraders completely remove previous mod
version and install fresh. (when removing there is no need to
manipulate OSC database).

Use care when editing core files or merging code and customizing
templates. Back up first!

After updating files on your host be certain to go to OSC Admin UI >
Modules > Payment and uninstall the googlecheckout module. Then
reinstall.

SUPPORT:
Please post v.1.4.5 observations, suggestions and ideas to the support
forum discussion area at
http://groups.google.com/group/google-checkout-for-osc-mod-support

DEMOS:
Demo of latest released mod version is at:
http://demo.globant.com/~brovagnati/osc_demo1/catalog

Demo of GC mod currently under development is at:
http://demo.globant.com/~brovagnati/osc_demo2/cataglof

CHANGELOG:
09/27/2007 v1.4.5_CCS (ropu)
    - Added Carrier Calculated Shipping Support (CCS)!!
      (http://code.google.com/apis/checkout/developer/
Google_Checkout_XML_API_Carrier_Calculated_Shipping.html)
    - Added Sandbox and Production id/key config in Admin UI
    - Added SANDBOX string to the payment method in order page for
orders processed
       with GC using sandbox.
    - Added a warning under the GC Button when in Sandbox mode.
    - Added a warning in the Payment Modules page in the Admin UI when
in Sandbox mode.
    - Disalbe merchant Calculation Shipping methods from the Admin UI
by setting
       Default value to 0.
    - Added Google Checkout Custom Order States that match Google
Checkout ones.
        (Check INSTALLATION, an SQL must be run to update old GC order
status)
    - Check for non-valid state changes
    - Allow product categories to use GC as checkout system
    - Added Cart Expiration
    - Check for correct configure.php defines to avoid shipping module
inclusion errors
    - Added a configuration to disable GC button for specific product
categories
       (double check http://checkout.google.com/seller/policies.html#4)
    - Send Zencart's Credentials to new customers created with GC
    - If AutoCharge is enabled in GC, a whole Digital purchase is
processed without
      merchant intervention.
    - Use updated PHP Sample code
    - Changed PHP Sample code parser classes names to avoid complicts
      (XMLParser -> CG_XMLParser, XMLBuilder -> CG_XMLBuilder)
    - Added Cancel Order feature.
    - Added shipping_methods_uk.php with UK pre-configured shipping
methods.
    - Admin UI configuration regroupment
    - Added Recommended Default Values to Shipping_generator