Does anyone use Echo-Inc as their merchant/gateway provider and has written the order form to submit orders and process them in real time?

If so, can you shoot over any pointers? I'm trying to write it myself but it's really hard.

I haven't used Echo myself, but I came across this link a while back that might be useful to you.

http://www.openecho.com/

Thanks for the link but I already knew that :) I was hoping for someone who has already made one and would be willing to share some ideas or something.