you could try installing gthumb and/or f-spot which are both photo management tools.
they should give you the needed tools to import your photos.
I prefer f-spot.
you can use synaptic to install your programs.
I have found that some times when i plug my camera in a pop up screen appears and asks if i want to import photos? I say yes but nothing happens. I then open f-spot and just select import and choose my camera from the list.
this may happen with your camera.