I am using Ubercart beta 5 bazaar version 853 and PHP 4.3.11 and am still having problems with USPS quotes.
With markup, the charges are correct for Express Mail ($73.80) and Priority Mail ($17.70). Parcel post is quoted at $19.62 where it should be $13.88. I have posted this before and have had no changes in behavior from alpha 8 version.
I have moved on to use flat rate shipping, which DOES work OK. But I would rather be able to use USPS rate quotes. Any ideas?