Found a block chain explorer and the payment address has never been used.
Hmmmm, I'm reading the confirmation email from Poloniex, and it has a confirmation link address which I need to click.
Maybe thats why It didn't go through.
Leave it with me, Thats likely the explanation.
Yep, it sounds like the funds were never sent, which would explain why you can't see those coins in Armory.
Good luck getting it sorted out.