It is possible, but you'll have to upload the picture to the Internet somewhere else first. Since you can set up a Geocities or Tripod web page for free, you could just use that as a holding pen for your image files.
When you want one of those images to appear in your post, you'll place it using the "IMG" tag. You'll need the exact address of the photo you uploaded, and place that in your post like this:
[ IMG]http://www.somewebsite.com/directory/image.jpg[ /IMG]
The IMG tags tell the forum software to treat that as an image and include it on the page. I've put spaces after the left-brackets so the system *won't* interpret them here--you should type them without spaces.
Or, to save readers from the added time of downloading an image they might not want to see, you can just put in the link to the image without bracketing it in IMG tags. Those who want to see it can still click on it and bring it up.
[This message has been edited by adamrice (edited 24 September 2001).]