Hi kristin,
I use Photobucket, it's free and it's fun

Once you get a graphic you like, you copy the code and insert it in your post -- or if you find a pic you like that you want to use from the web, right click and copy the "URL" then click on the image icon in your text box's tool bar and insert the URL and uncheck "locally" - do a preview by clicking on your "Go advanced" and choosing "preview" and you should see it
