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>
    <allimages>
      <img name="Sysbio.png" timestamp="2010-03-04T23:37:44Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/f/f5/Sysbio.png" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:Sysbio.png" ns="6" title="File:Sysbio.png" />
      <img name="Assb_banner_2.png" timestamp="2010-03-04T23:37:16Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/5/59/Assb_banner_2.png" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:Assb_banner_2.png" ns="6" title="File:Assb banner 2.png" />
      <img name="Science_rgb.jpg" timestamp="2010-03-03T18:32:33Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/2/23/Science_rgb.jpg" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:Science_rgb.jpg" ns="6" title="File:Science rgb.jpg" />
      <img name="Science_logo_ASSB.gif" timestamp="2010-03-02T18:45:41Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/2/2f/Science_logo_ASSB.gif" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:Science_logo_ASSB.gif" ns="6" title="File:Science logo ASSB.gif" />
      <img name="UNMCC_logo_ASSB.jpg" timestamp="2010-03-02T18:45:27Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/2/2a/UNMCC_logo_ASSB.jpg" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:UNMCC_logo_ASSB.jpg" ns="6" title="File:UNMCC logo ASSB.jpg" />
      <img name="Wilson_portrait.jpg" timestamp="2010-03-01T21:02:08Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/3/37/Wilson_portrait.jpg" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:Wilson_portrait.jpg" ns="6" title="File:Wilson portrait.jpg" />
      <img name="Odell_portrait.jpg" timestamp="2010-03-01T21:01:54Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/4/46/Odell_portrait.jpg" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:Odell_portrait.jpg" ns="6" title="File:Odell portrait.jpg" />
      <img name="Foe_portrait.jpg" timestamp="2010-03-01T21:01:39Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/0/04/Foe_portrait.jpg" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:Foe_portrait.jpg" ns="6" title="File:Foe portrait.jpg" />
      <img name="LANL_logo_ASSB.jpg" timestamp="2010-03-01T20:41:00Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/1/12/LANL_logo_ASSB.jpg" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:LANL_logo_ASSB.jpg" ns="6" title="File:LANL logo ASSB.jpg" />
      <img name="SfX_logo_ASSB.jpg" timestamp="2010-03-01T20:40:42Z" user="Wish" url="http://cnls.lanl.gov/q-bio/seminar-series/images/a/a0/SfX_logo_ASSB.jpg" descriptionurl="http://cnls.lanl.gov/q-bio/seminar-series/index.php/File:SfX_logo_ASSB.jpg" ns="6" title="File:SfX logo ASSB.jpg" />
    </allimages>
  </query>
  <query-continue>
    <allimages aistart="2010-03-01T20:36:47Z" />
  </query-continue>
</api>