Copy the html code first then click on USE HTML at the bottom of your message, paste the code into the message box and then do this
like this above^
now click and remove this part:
now uncheck the html at the bottom of the message and your image should show up
the reason for this is so that other people can't just click on your picture and go to your albumn
try this is really works and once you do it a few times it becomes real easy
let me know if this works
Nip
another way you can do is is open the image to full size and copy and paste it into your messages
the colors was changed in this so you can see the differenece