TOPIC: Broken Link on page after cancelling from PayPal

If I go as far as PayPal and then click the 'Cancel and Return to Site' option, I get taken to a page which includes this link:

http:// (mysite) /registrations/components/com_dtregister

Following this link gets just a blank white page.

Can you tell me where I can edit this cancellation page so I can change the link?

Also let me know if you think this is a general bug and plan to fix it in a future update.

Thanks.