This is a test reply to see if things work as advertised.
[/img]http://www.flickr.com/photos/7699588@N07/4903383992/in/set-72157624749565400/[/img]
Latest yashicas with new hoods.
Your image tag, doesnt have .jpg at the end.
A link til your image in "medium" is :
http://farm5.static.flickr.com/4115/4903383992_47440f7b24_m.jpgAnd therefor becomes:
[/img]http://farm5.static.flickr.com/4115/4903383992_47440f7b24_m.jpg[/img]
whitout the / of course
And that will look like this :

Edit: Hm, dont know why that doesnt work (Found out why, an apostrof in there somewhere)

Anyhow, I dont find jpg links on flickr anymore, but the "grab the html" and choose bbcode of course works.
So here what you do br1078lum;
1. Go tour image.
2. Press "Share this" (in the upper left corner?).
3. Press "Grab the HTML".
4. Press "BBCODE", and choose the size you want.
5. Copy all the text in the "text box".
6. Paste it all in a reply box here on the forum.
For
THIS image in my photostream, when doing the list above, I get this:
[url=http://www.flickr.com/photos/taulen/4867318517/][img]http://farm5.static.flickr.com/4077/4867318517_a065d8ef99_b.jpg[/img][/url]
[url=http://www.flickr.com/photos/taulen/4867318517/]Waterfall - Norway / Voss[/url] by [url=http://www.flickr.com/people/taulen/]taulen[/url], on Flickr
And when I paste this in this forum, I get this:
Waterfall - Norway / Voss by
taulen, on Flickr