tyran: It is happening becuase you are linking to an image that does not exist. When you specify, smilies/none.gif, the way it is setup, the board/server will retrieve or at least try to get /cgi-bin/forum/smilies/none.gif. To remedy this problem, for the img src, do /ubb/smilies/none.gif, instead of smilies/none.gif.
Hope that helps. It should work because I looked at your site's dir structure and you are right, none.gif does exist, just not in the place you are linking to.
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