You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages aicontinue="20130428194319|Main_RA.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="Comp_multimedia_html.png" timestamp="2013-05-16T11:24:53Z" user="Paulo Santos" url="http://dshelp.betterds.com/images/e/ec/Comp_multimedia_html.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_multimedia_html.png" ns="6" title="File:Comp multimedia html.png" />
      <img name="Comp_multimedia_videoeditor.png" timestamp="2013-05-14T15:50:18Z" user="Eurosign" url="http://dshelp.betterds.com/images/d/d6/Comp_multimedia_videoeditor.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_multimedia_videoeditor.png" ns="6" title="File:Comp multimedia videoeditor.png" />
      <img name="Qm_limits.png" timestamp="2013-05-14T15:03:37Z" user="Eurosign" url="http://dshelp.betterds.com/images/8/8d/Qm_limits.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Qm_limits.png" ns="6" title="File:Qm limits.png" />
      <img name="Es_help.png" timestamp="2013-04-30T20:43:47Z" user="Eurosign" url="http://dshelp.betterds.com/images/3/34/Es_help.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Es_help.png" ns="6" title="File:Es help.png" />
      <img name="Play_serverreg.png" timestamp="2013-04-30T20:37:35Z" user="Eurosign" url="http://dshelp.betterds.com/images/c/c5/Play_serverreg.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Play_serverreg.png" ns="6" title="File:Play serverreg.png" />
      <img name="Play_setup_loc.png" timestamp="2013-04-30T20:33:00Z" user="Eurosign" url="http://dshelp.betterds.com/images/9/90/Play_setup_loc.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Play_setup_loc.png" ns="6" title="File:Play setup loc.png" />
      <img name="Play_setup_other.png" timestamp="2013-04-30T20:29:57Z" user="Eurosign" url="http://dshelp.betterds.com/images/a/af/Play_setup_other.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Play_setup_other.png" ns="6" title="File:Play setup other.png" />
      <img name="Play_setup_gfx_out.png" timestamp="2013-04-30T20:25:25Z" user="Eurosign" url="http://dshelp.betterds.com/images/d/d1/Play_setup_gfx_out.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Play_setup_gfx_out.png" ns="6" title="File:Play setup gfx out.png" />
      <img name="Play_setup_com.png" timestamp="2013-04-30T20:18:53Z" user="Eurosign" url="http://dshelp.betterds.com/images/3/3a/Play_setup_com.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Play_setup_com.png" ns="6" title="File:Play setup com.png" />
      <img name="Es_manual.png" timestamp="2013-04-28T20:18:51Z" user="Eurosign" url="http://dshelp.betterds.com/images/e/ef/Es_manual.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Es_manual.png" ns="6" title="File:Es manual.png" />
    </allimages>
  </query>
</api>