If you followed the Import from the old Portfolio Mgr to the new (and rudimentary and not functional) My Watchlist, then you're done. There is no going back to the old Portfolio Mgr. They didn't end it early, you simply followed the instructions to import from PM to Watchlist... and because of that, your PM access is no longer valid.
Yes, Watchlist is junk and nowhere nearly as robust as PM. Microsoft knows what's good for you and you will like it.... That's why many of us are giving Microsoft a few weeks to address the issues before we jump ship. Good-bye MS, Bing, IE, Money Central, etc....
Stay tuned for more.
AGE