Modify apache solr search sort options?
You can find all info with examples here: http://drupal.org/node/715276

&lt;?php
function MYMODULE_apachesolr_query_prepare(DrupalSolrQueryInterface &amp;$query, &amp;$caller) {
  $query-&gt;addParam('fl', 'some_field_image');
  $query-&gt;addParam('fl', 'some_field_date');
  //Remove sorts
  $query-&gt;remove_available_sort('sort_label');
  $query-&gt;remove_available_sort('bundle');
  $query-&gt;remove_available_sort('sort_name');
  //Rename sorts
  $query-&gt;remove_available_sort('score');
  $query-&gt;set_available_sort('score', array('title' =&gt; t('Relevance'), 'default' =&gt; 'desc'));
  $query-&gt;remove_available_sort('ds_created');
  $query-&gt;set_available_sort('ds_created', array('title' =&gt; t('Latest'), 'default' =&gt; 'desc'));
 }
?&gt;