World Watch - timepiece and screen saver

This software is excellent. In essence, I now have a GeoChron at a fraction of its cost. Displayed on a 24-inch monitor, it's beautiful. Click on various countries with the mouse, and a myriad of local information, including time, sunrise and sunset times and current and future weather conditions are displayed. And more. Not sure GeoChron has any connection with this product at this time. The name GeoChron used to appear on the front of the box but no longer. Now here's the frustrating part. The manual says it's important to register the software on the company's website but where? I searched and searched but did not find any way to register via online. So I filled out the accompanying registration postcard and popped it in the mail. A few days later it was returned by the postal service because the mailing permit had expired. Great. I then folded the card and stuck it in an envelope and mailed it again only to have it returned this time saying the Las Vegas address was no longer valid and no forwarding address available. (The company is called Express Tech.) I emailed the company and after a week have had no reply.