Hey there! There are a few different ways to do this, but the most basic (works for most devices) is to connect your smartphone to your computer using the USB to MicroUSB cable that comes with most phones these days. Usually the USB portion connects to the wall unit of a charger - does that sound like your charging cable? What kind of phone do you have?
Just stopping by to see if you still need help with your pictures. Were you able to give the suggestion above a shot?