Hello everyone,
No matter what I try, I cannot get the 2checkout payment module to work. I have my own SSL certificate, I have followed Alex Seto's instructions for module 2.1 http://www.oscommerce.com/community/contributions,904, but I still get "wrong parameters" error from 2checkout. Strangely enough, the first time I tested a payment with 2checkout ,it went through, but now it simply refuses no matter what I try.
If you are managing to work with 2checkout, can you please tell me which module you used, and what additional mods you had to make, if any.
Thank you very much.