Oh, Kenneth...I love scrapbooks! Call me sentimental, but I save all my Personal Navigators from Disney Cruises and Playbills from Broadway. It helps to remind me of such wonderful memories!
Unfortunately, I didn't sail on your recent Disney Dream voyage, and I personally can't help you out. Additionally, each Disney ship has its own print shop on board. (I know...cool, huh?) Therefore, the only copies which make their way ashore are with guests. If you haven't already, I would encourage you to visit the various Disney Cruise Line fan sites on line or the discussion boards to see if anyone has a Personal Navigator from the day you're missing. Of course, friends you met while on board are a good resource, too.
I'm bummed that I can't help you out, but I hope that I might have pointed you in a direction that hasn't occurred to you. Have a wonderful day, and I hope your next Disney Cruise Line vacation is soon. Bon voyage!
Andi