Use google checkout as just payment module?

I do not like Google Checkout as the site checkout process. I want it as "an alternative payment processor" instead of the checkout process .
All the orders process through the site sytem and only in last page the customer can choose Google Checkout as a payment choice.
I have found one in Os commerce oscommerce.com/community/contributions,5157/category,1/search,google
But it doese not work in the zen-cart syste.
Anyone can help me ?

I do not like Google Checkout as the site checkout process. I want it as "an alternative payment processor" instead of the checkout process .
All the orders process through the site sytem and only in last page the customer can choose Google Checkout as a payment choice.
I have found one in Os commerce oscommerce.com/community/contributions,5157/category,1/search,google
But it doese not work in the zen-cart syste.
Anyone can help me ?

northlee007:

I do not like Google Checkout as the site checkout process. I want it as "an alternative payment processor" instead of the checkout process .
All the orders process through the site sytem and only in last page the customer can choose Google Checkout as a payment choice.
I have found one in Os commerce oscommerce.com/community/contributions,5157/category,1/search,google
But it doese not work in the zen-cart syste.
Anyone can help me ?

GCO is an alternative payment processor. Google REQUIRES the checkout button to be located prior to any place where the customer would have to register on your site. That is the whole point behind using GCO...so you don't have to register at 50+ different sites.

That being said, once someone checks out using GCO the information is fed back to your site's ordering system and their order shows up just like any other payment method.