Known issue (and solution) for PowerStore 2 with Shipping Info & PayPal
There was a bug discovered in PowerStore 2 where the customer's "shipping" last name does not transmit to Paypal using Direct Payments. If you have experienced this bug, you can now fix it by copy/pasting the new confirm.php file to your PowerStore site(s).
Log in and visit the Download Center. Click on PowerStore 2; then click on the Known Issues section. Download the related zip file and follow the instructions in the readme file.