For international shipping in 1.3.7, if i have choices, lets say

express mail int'l
priority mail int'l
first-class mail int'l

when i go to checkout_payment page, the top choice, in this case, express mail, is always selected, no matter what's selected on previous page

i looked through all the source code for HOURS and for the life of me couldn't figure out what to do! how can i fix this? thanks

i am trying to upgrade to 1.3.9 but i am getting a
"We are unable to find a USPS shipping quote suitable for your mailing address and the shipping methods we typically use."