In the meantime, here is a quick guide that I put together a while ago:
1. click on the camera button:

2. If your picture is already in the gallery, then find it in the thumbnails shown in the pop-up resulting from clicking on the camera icon:

3. You can do a bunch of stuff in the resulting pop-up:

4. After you click the "Done adding pictures button" it will take you back to your post. You'll see the pictures added as URLs in your post with the image tag ("img"). If you want your pictures displayed in full size, remove the "medium/" as shown here:

Also, the pictures will just show up all in the row. You can cut and past the image links by selecting the whole image URL "[img]
http://www.cascadeclimbers.com/blah...[/img]" (as you see in the picture above) and pasting in to the appropriate place in your post.