A question about partner flights posting to LP:

My friend and I did the partner segments on USAir this weekend and are having trouble figuring out how to get the miles to post. We added our LP numbers to the reservations, asked the gate agents to double check them, and are now calling USAir Dividend miles to confirm the posting. The Dividend folks have no idea what we're talking about though, and we're getting two completely different stories from LatinPass and USAir. Has anyone had their USAir flights sent over to LP and if so, how?