Have had to disconnect from our credit card validation form (https://merchants.worldpay.us) because our Drupal 7 website integration relied on mcrypt to connect our local shopping cart to the the validation form. The documentation we had, Online Commerce SuiteTM WebPay Integration Guide, is copyrighted 2014 (?!?) and I can't find my way into anything new.
Do I need to start from scratch? I also can't seem to get any traction with the credentials we'd used to set up the original form. Is there a new portal? The client themselves isn't much help in this either.