After you have created the image, you must upload the image to you computer, and then you have to store it at some kind of hosting service that allows remote linking; then you can use the image without it disappearing.
For storage and remote linking, I suggest this great free service: http://photobucket.com
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.