mrtbones, for pictures to show up, the url between the img tags in your post has to end in ".jpg"
For example, I took your first url, pasted it into another browser page, and saw that you are posting the URL to the flickr page. If you right click on the picture using the Firefox, one of the options is "view image". Clicking that brings up only the picture, with its standalone URL in the address. (Only Flikr adds a "?v=0" on the end. Taking that off gives you the pure url.)
Using Internet explorer and pasting the first address brings up the page, but IE won't give you the picture by itself. But if you right-click the picture and select "properties" (I'm using IE version 7), one of the properties it the picture's URL, again with the ?v=0 at the end. If you copy the url from that and paste it into the place between your [img]...[/img] tags, it will display your picture in your message.
I got this picture's URL by viewing just the picture:
http://farm3.static.flickr.com/2096/2451497516_771950c41a.jpgAnd pasting it between the url tags gives the picture:

Here are the rest:


