One more time.
This is what your img link looks like
{img]http://www.flickr.com/photos/vwtrike/4328098381/[/img}
That link doesn't take you to a photo. Are you right-clicking on the photo, selecting "properties" and highlighting the ADDRESS [URL] area?
.....I know what you're doing!!!!!!!!
You're not copying the whole link! BO** Don't highlight from the top down. If you left-click (once) in the ADDRESS section, then use your right arrow key it will scroll All-The-Way to the end of the address. It will end in .jpg (or gif or bmp etc) THEN right click and highlight from the end all-the-way to the beginning (http) and try that