What you followed from that link was when the transaction got stuck with 0 confirmation, right? But your transaction has when you checked in the explorer. Why not try this one?
(if you have not done it yet) If you experience missing transactions and/or incorrect balances, you may simply need to “Rescan Databases” from the “Help” menu.
If doing only the rescan doesn't make it work, then you need to rebuild and rescan the database again.
If Armory crashes while starting up, especially while scanning, you may need to “Rebuild and Rescan Databases” from the “Help” menu.
Please update here if it worked.