PayPal payment gateway problem
I have eCart 4.5.2 and DWCS4, PHP & mySql. Haven't used eCart for ages and now just built another shopping cart solution BUT seem to be fouling up at the payment gateway stage.
I've used the checkout wizard to build the final stages and PayPal as my gateway. I had thought that the wizard, having generated the payment success and failure pages, would complete whatever necessary form fields sent to PayPal to enable the correct redirection back to my site once payment had been received (or declined).
This isn't happening! Any ideas? I've checked the actual payment / confirm page form and the eCart includes that store the cart details etc. but can't see where PayPal is getting its instructions as to how to redirect after the transaction.
Am I missing something really obvious here?
Should I be manually editing the hidden fields in the confirm form: "cancel_return" and "return" ??