Thanks for getting back to me. For the USPS module I have @version $Id: usps.php 2013-07-28 ajeh $ Version J 2013-07-28 and another line @version $Id: usps.php 2013-07-30 ajeh Version J5 $.
I just saw that there was an update for the USPS module but I haven't noticed anything about UPS module. Because they both quit at the same time I wanted to try and be sure of what the problem is before I start changing modules, etc.
Does the updated USPS module work fine with zencart 1.5.1?
Thanks for your help.