Hi, I have installed this module: Last change was made by Alex Seto. I'm also using OSC 2.2rc2
I have already went to Look & Feel and set up everything accordingly in 2checkout.com. I even took the (_) underscore from pm2checkout_process.php but I am still receiving the error.
Everything I do at the moment in 2checkout is on the test server. I login as a customer in my website then place an order and it redirects me to the 2checkout website, but all it says is "parameter error". I'm not sure how to fix this.
Anyone any ideas??