I've just checked another old thread : http://forums.macrumors.com/showthread.php?t=149870 though i've got some suggestions there, i found those widget do not work on my macbook pro 15" (mid2011) running ML. Those widgets work similarly, requiring you to drag and drop photos to those widgets. However, nothing happens after i drop photos onto these widgets. Since i do not find any preference panel for dashboard, i don't know what to do with this issue. is there anything i need to setup in order to get those widgets work?