Hi Pete!
A PM is on the way!
When ever you see a pic online that you want to post, just right click your mouse on it. Then Highlight the "Address (URL) that is listed and copy then paste it into your BBM post.
Look above the winking Cowboy icon in the posting box. There is a small square symbol of a picture. Click that. Then insert the Address (URL) of the photo you want in the middle of that.
Example <img>
http://sample.jpg</1mg>
Then click preview to make sure it worked. LOL
Now when you hit post, the photo should appear.
David