As instructed, I downloaded SmithCart version 02.44.12 from Snowcovered.com. After installing this PA, the BuyNow modules now displays:
This is a trial version of the SmithCart. To obtain a valid license key or purchase the full version, please contact Smith Consulting at www.smith-consulting.com or email sales@smith-consulting.com. Thank you for using the trial version of SmithCart.
I purchased this module from Snowcovered; it should not diplay a trial notice. Please advise as to how I can remove it.