There is. It is recessed into the window upright. Look again next time
Look at these pictures:
http://www.drive.com.au/PHOTOS/PHOTO400/SSCAUS/ALFA%20ROMEO/156/2002/4SA.JPG
http://www.channel4.com/4car/gallery/gallery.jsp?id=170&page=6
You can see where you put your fingers to pull the vertical handle at the very back of the window.
Hope that answers that one for you!