This is broken. That's all there is too say. Nokia sleep on this for six months. That's the time since the first developer preview of Mavericks arrived. Thanks for not caring about your mac users, Nokia.
There's a workaround though, to get your photos and videos off your device. Download and install the "Windows Phone" software for OS X from here: Windows Phone-Anwendung f?r Mac. Then in that software navigate to "search device" scroll down till you arrive at the correct section. Drag files to finder.
So will Nokia Photo Transfer will be coming back or is it a dead horse?