I had problems with "My Itineraries" all day Sunday. It took me an hour of off-and-on trying while surfing....and I kept getting a "this page cannot be found" message. I could get to e-upgrades and everything else.
When I finally got to the page later on, I couldn't get any of my intereraries to open.
I gave up til Sunday night...went in, logged in, and checked....there they were, no problem.