print pdf booklet w MFC-J6510DW

I have a Brother MFC-J6510DW. I created a booklet in word 2010, that prints fine when printed from WORD. When I save it as, or print it to, a pdf then when I try to print it, every other page is upside down. I'm using Adobe acrobat 9 pro. I've tried changing settings... and still have the problem. Any help would be MOST appreciated.