This module is a CERTIFIED module by 2Checkout.

UPGRADE information here: http://www.magentocommerce.com/boards/viewthread/15607/

This will make use of all 2Checkout features.
Along with the classic feature for a payment module you will find:

- INS - Instant Notification Service which will notify your platform (shop) about different changes occurred to a certain payment : fraud review, refund etc
These details will be passed to your Magento store which will act accordingly ( you decide how).

- MD5 Hash Verification - Allow you to make sure that any communication between your Magento store and 2Checkou servers is genuine.

- a lot of customization settings in the admin area (ex. what order status should be use when 2CO "inform" your store that the money were deposited into your account?)

- this extension is already enrolled in the 2CO certification process

IMPORTANT!! It is strongly recommended to use the MD5 Hash feature in a live environment.

Any kind of feedback is welcome!!