Nope, strange, can you see it on your screen?
Just put:
[img]http://www.blahblah.com/image.jpg[/img]
If you use something like Photobucket or similar it's just a case of copying and pasting the BBcode they give you.
EDIT: Just quoted you and had a look at your image tags and you're using the right syntax. I'm guessing your host doesn't allow hotlinking, because I looked at one of the images directly in my browser and then when I came back it appeared in your post. Best thing would just be to stick the URLs in without the images or upload them somewhere else.