anchor.diff:      <td> Transcription factor binding sites</td>
       <td> <a href="http://www.flyreg.org/" target="_new">REDfly</a> - Version 2.1</td>
       <td> Bergman et al - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=15572468" target="_new">PubMed: 15572468</a></td>
  -    <td>  &nbsp; </td> 
  +    <td>  &nbsp; </td>
     </tr>
   
     <tr>
       <td> <i>D. melanogaster</i> </td>
       <td> Enhancers</td>
  -    <td> <a href="http://www.flybase.org" target="_new">Flybase</a> - Version FB2008_05</td>
  +    <td> <a href="http://www.flybase.org" target="_new">Flybase</a> - Version FB2008_06</td>
       <td> Crosby et al - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=17099233" target="_new">PubMed: 17099233</a></td>
       <td> &nbsp;</td>
     </tr>
  
positive.code:   <tr>
      <td> <i>M. musculus</i></td>
      <td> GO annotations </td>
      <td> <a href="http://www.geneontology.org" target="_new">Gene Ontology Site</a> - 24th May 2008</td>
      <td> Gene Ontology Consortium - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids= 10802651" target="_new">PubMed:10802651</a></td>
      <td> &nbsp;</td>
    </tr>
  
negative.code:   <tr>
      <td> <i>C. elegans</i></td>
      <td> GO annotations </td>
      <td> <a href="http://www.geneontology.org" target="_new">Gene Ontology Site</a> - 29th June 2008</td>
      <td> Gene Ontology Consortium - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids= 10802651" target="_new">PubMed:10802651</a></td>
      <td> &nbsp;</td>
    </tr>
  