Help needed for writting payment module

[andes]

Hello:

I need help writing a payment module.
when the customer is ready to buy the products in his shopping cart it must be redirectec to another page from my payment provider for the customer to put his cc numbert and other data, then after success the customer return to my cart and I must create the order in the cart and, show a detail to the customer and save his data.

can anyone help me with the structure for a shipping module like this one please.

[kiddo]

Did you check in the add-ons to see if a module already exists for your payment processor?

[andes]

yes I've checked the addons area and there's nothing for my payment processor

[stevesh]

We might need the name of your payment processor.

Please include all applicable information in your first post.

[andes]

I can't find how to edit...sorry

Name: Transbank.
how it works: I must send the amount, order number and customer info to a cgi hosted on their server, the client enter their card information on the cgi and it's procesed, after that the result it's send back to my servers and it must be processed in zencart and show the page for success or fail.

that's the way it works, any help will be really apreciated.

[kiddo]

You might want to consider choosing a supported payment processor. I think you are biting off more than you can chew.

[andes]

that's the only choice in my country, thats why I'm using this processor