The way to get it like that is by first copy/pasting the <*img src= URL, which is the second type listed under your image on Photobucket. Then copy/paste the normal URL (*http://) underneath it. That gives a preview of the icon, and also the URL which is needed. I can simply open up the properties of the icon and copy the URL from there but that takes too long.
So, if you fail to enter an icon in this format, it will NOT be included in the voting.
If you have any questions, ask here.