[ic] custom credit card processing

[k0rd]

Hi, my query is twofold.

First, we would like to use interchange in conjunction with a payment 
gateway called "PC Charge" by Go software. I realize that I will probably 
have to write my own code to achieve this. My first question is : Is there 
a (semi?) documented procedure to integrate new credit card processing 
methods? I can write the transport in perl, I'm just not sure how 
interchange works in conjunction with credit card processing methods. Can 
anyone give me a quick breakdown of what files tell interchange what to do 
with customer entered information at the check-out? Is this stuff 
configurable, or will it require a hack?

Lastly, has anyone successfully used this pc charge software with 
interchange before? I would be interested in hearing about your results.

Thanks for your time :)

k0rd