Hi Mike - i nearly gave up..... in the end i created a Flickr account and uploaded the picture. Once uploaded their was an ability to 'Share' (picture of an arrow) the photograph.
When i chose that you get 3 options - link, Html or BBCode - of which i found that BBCode looked the best bet 9and you can choose the image size)
I Copied the whole string from the window in Flikr , but it didn't work as expected, so i then tried using everything enclosed by the first and second tags - the forum does seem to like me showing an example i'm afraid!
This seemed to work OK - i'd imagine Photbucket has a similar share/export type function
In Cookie's case he has probably just added to separate URL's within the same forum post
hope this is of some use
.... Andy