First open either a new message or click on Post Reply to another message. The process should look like this:
After your image URL is copied, return to the message and paste the URL into the message.
Well, the thumbnails are not showing up but you would have to click on them to enlarge anyway and it shouldn't be more difficult to click on the link instead.
If you have another image hosting site with your image on it, you can use it to show your image in a message here by doing the following:
1. Make sure HTML is enabled
2. See how to use an img src tag in html at: http://webdesign.about.com/od/beginningtutorials/a/aabg120598i.htm I can't post the formatted tag because it won't show up as the tag here! Anyway, type the tag in your message where you want the image. Delete anything between the quote marks as this is where your new image URL will be pasted.
3. Go to your image host and find the photo you want. Click on it to make sure it's the only image selected then go up to your browser window and highlight and copy what's there. This is your image URL.
4. Go back to the message where you want the image and the html code you typed there. Click BETWEEN the quote marks and paste your image URL there. Your image should show up in your message.
Hope this helps