Thanks for BDuell's and lousterg's fixes on 11/13/2013 and 11/14/2013 respectively. http://addons.oscommerce.com/info/487
lousterg's fix was uploaded. Domestic rate is working now. But international still has error.
I noticed 'RateV4Response' in the international shipping section in the usps.php at line 1525:
$tmp = $this->_decode_intl_response($doc['RateV4Response']['Package']['Service'], $nonuspsinsurancecost, $pkg['item_price']);
Not sure if 'RateV4Response' should be 'IntlRateV2Response' in this line since it's intl shipping.
However, I changed it to 'IntlRateV2Response' but it still has same error.
Any feedback is appreciated.
Bill