The easy answer is use the Kodak Easyshare software program to download ALL the pictures from your camera.
You want to do that anyway - just in case the camera ends up broken or stolen. Always back up your important files (that includes pictures).
Once you've downloaded all your pictures, just pick and choose which ones you want to use. The EasyShare software will help you make the photos look better and change the photo sizes (if needed) for your online listings.