Card Reader
Normally you can plug the camera right into the PC with the correct connection cable,
or
Buy yourself a card reader for you "flash drives", It will plug straight into a USB port of your PC and appear like a new drive (eg F:\ or G:\)
once plugged in you can browse to it from "My Computer" on your desktop if you are using windows.
there are many different memory cards and you can buy readers that can read all of them, but be safe and take the chip to jessops or somwhere to get the right one if you are unsure.