Kimmers: If the picture exists somewhere on the Internet, I think you can link to it the same way you would any text item.

If you only have it on your own computer, I don't think there's any way you can post it here.

If someone emailed it to you, I think there's a good chance it does exist somewhere on the Internet. Try doing a search for it with Google. (www.google.com) You can the use the file name as a search argument, or if that doesn't work, try a descriptive phrase.