via the USB cable that came with the camera (hope you didn't throw it away!)

If you did, take the camera to any computer shop and they should be able to sell you a suitable cable for the cost of one round of CD "processing".

If your computer is less than five years old, it's guaranteed have one or more USB ports on it. They might all be round the back if it's an older PC, in which case just leave the cable permanently plugged in so that you can jack the camera in whenever you want. If your computer really is old enough not to have one, a plug-in card will cost you £20 at most in the UK (probably $20 in the US). Most decent computer stores will plug it into your computer for you (some for a small fee, some for free).

Most computers don't have a slot to read the card directly, which is why you need the camera to send stuff to the computer. Some computers do have a suitable slot; again, a card reader is fairly cheap too if you want one. But usually just a USB cable is enough.

Graham.