By the way, I am using v2.1.16 of the shipping extension and the USPS module is active. I haven’t done any XML debugging (since that’s not my area) and I wouldn’t know what to do.
Thanks for any help you can give me. We hope to go “live” next week and the store is the only piece that isn’t working. If I can’t get it to work I’ll have to bail on the store and view the $45 cost for the USPS extension as an expense without an ROI.