First, download your photo to your computer. Photos are uploaded to your listing from your computer so you need to download images from your camera or scan them in.
Second, save photos in either .gif or .jpg format, not exceeding 2MB in size. Most computers have a photo viewer with a re-sizing function, or use Picasa: it's online, simple and free.
Finally, you will be given the option to upload photos during the Sell process.
Photos will be automatically deleted if:
A photo is uploaded and not used in a listing for three weeks
OR
A photo has been used in a listing which has closed and the photo has remained unused for 45 days