Possible signature bug

[Captain Barry]

I recently created an image as my signature and has been uploaded with with two different uploading sites. Once it was uploaded, I attempted to use the 'Insert Picture' function when you create a signature. The link was pasted in the text box with the '[Img]' tags to display the image. But when I go to look at my signature on the forums, it just appears as a broken image link as seen below. Any body else experiencing this problem and if possible, any solutions?