Angry, when you post, try clicking Preview Post to make sure it will come out correctly. If not, you can edit them. Right now, your posts look incorrect, but I've not clicked on the links.
I believe with imageshack, you don't need to use any special commands as they tend to wrap or hug the URL with IMG commands. Again, try the Preview button to find out for sure. I host my images on my own site, so I've never used ImageShack.