The best system here is Imageshack - you should see it just above the link you click to post your message.
Here is the link for a walk-thru tutoral, but click on browse, find your image on your drive click on host it and click on and copy link, then paste it in your post - look at the images Robo put together and it will make sense. The image (as you asked) is uploaded to the imageshack site (stays in your computer of course) but stays hosted online - thus keeping our site image storage to a minimum.
PS - try to keep all pics around 100K if possible - image shack allows BIG PICS, but if you host them for here PLEASE choose the thumbnail option. Best wishes.http://forum.beemaster.com/index.php?topic=6691.0