umguy, it has been my experience that only a portion of my airline reservations are available online. None of the reservations I make offline appear. Most of the reservatons I make online are listed.
I was glad to learn that you were able to book your reservation on Monday with the elite desk, even though the 14 day advance had passed by several days. Call Northwest Airlines and reconfirm your reservation using your record locator number. Hopefully, all will be in order. Ask them to fax or e-mail you an e-ticket itinerary and receipt.
Whenever I have an online problem, I immediately call the site's help desk. They are usually very helpful and they complete offline whatever task I was attempting online.
Good luck and happy travel!