I have my account set up with Paypal with the API info I need. The Ubercart instructions say to:
1. Enable uc_payment and uc_paypal modules at "admin/build/modules".
2. Configure PayPal WPS settings at admin/store/settings/payment/edit/methods: ◦Click the "Enable" checkbox for WPS.
I went to the "admin/store/settings/payment/edit/methods" location and don't see a WPS checkbox to enable anything.