yeah hang on, i've never messed with flickr
it won't let me right click to see the url code since it's copyrighted. In theory, you should be able to (and you might since it's your account) right click on the photo then select properties, or view image info, etc.., then when you see the address of the photo, starting in 'http', you just copy that link and enclose it with the [img ][/ img] tags
Best I can do is from your photostream page where all your thumbs are, but I cant' do it with the larger photo after you click on the tnail