If your phone comes with a USB charger cable, connect that from the phone to the computer. Dependent on the phone you have, (mine is a Samsung Galaxy Ace) it should come up with a link on the phone screen asking you if you want to connect the phone to the computer, which should then be accessed> once the phone appears up on your desktop, click on the folder and access the camera or DCIM folder which holds all your photos.
Though my phone is great at photo quality etc, one thing I've noticed is that the Samsung photos come out to the side, not elevated properly, so I always just open the photo on the desktop when I've accessed the photo and then take a screen shot. That way I can mess about with whatever settings my Preview tool box has on my Mac instead of messing about with the original photo.
Hope the info helps!
