Fish, in a nutshell, you basically have to upload your pictures to a web server (a web server is fancy-schmancy lingo for a computer that is dedicated to "serving" the internet).
Something like
www.photobucket.com. I've never used it, but several on here do. If you can't figure out how by going to that website, look back through the "how to" section of this site and I think you can find instructions. Its not too hard once you've done it a time or two.