Xdraft uses gtk+/gnome 1.x and not gtk/gnome 2.0. Unfortunately, gtk 2 is not backward-compatible with gtk+ (this is one of several reasons why I no longer consider gtk to be my friend)
The good news is that you can have both gtk+ and gtk2 installed on your system at the same time. Just install libgtk1.2 and libgnome32 packages on your system and you should be good to go.
