I just submitted a request to USPS regarding the script (https://sss-web.usps.com/cns/jscript...Information.js) and the landing page.

If your volume of sales is large enough, you might want to investigate ShipStation.com. I signed up with them for a trial period about a week ago. The integration with Zencart is quite tight. Everything loads up nicely, and setup is very easy. No tokens or additional software. Everything is web-based, so this is a big plus for Mac-users. Other than uploading the ShipStation module, the only thing you'll need to do is to include a new username and password in your admin specifically for ShipStation. After that, the rest of the setup occurs on ShipStation's website.

The only glitch is that ShipStation reads Zencart's weights in ounces rather than in pounds. I reported this to ShipStatoin, and they said they'll fix the glitch in a day or two. This was on Friday. Their customer service is also very swift. They report an average response time of 30 minutes. When my trial period is over, I'll post a review.

You can download the module at:
http://www.zen-cart.com/index.php?ma...oducts_id=2007

In any case, I'd like to see USPS Autofill fixed since it is handy for shipping last minute orders.