ClickBank does not transmit that information back to us, so we cannot store what they do not provide. :^) You will need to check your ClickBank logs to obtain that information.
As for the thank-you page, note that only PayPal Pro is capable of auto-redirecting to the thank-you page after checkout; regular PayPal standard and all other payment processors like ClickBank only provide a return/continue link on their checkout confirmation page, which the buyer must click manually to reach your thank-you page, and the thank-you page itself would only be available after the processor confirms that payment has completed (which is not always concurrent with completion of the checkout process itself).