So what I wound up having to do was call Tmo support, talked with someone at Tier1 who obviously thought I was smarter than they were, then talked to someone at Tier2 who wasn't much better who immediately sent me to Tier3 where some helpful guy got me hooked up right. He said the epc.tmobile.com was the one I wanted and he took the imie number (whether he needed it or not), said it would be working within 48 hours and within 2 minutes life was good. Gotta say I love this phone...