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HTML is good for debugging, but probably is not suitable for your application.
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<?xml version="1.0"?>
<api>
  <query>
    <allimages>
      <img name="MartinPaz.jpg" timestamp="2011-01-02T18:40:01Z" url="http://verne.djp.hu/Wiki/images/e/e7/MartinPaz.jpg" descriptionurl="http://verne.djp.hu/Wiki/index.php/F%C3%A1jl:MartinPaz.jpg" />
    </allimages>
  </query>
</api>