Drupal 6 : views Exposed Form : rename the label of a field : please how?
ok I came to this :
this looks like it does the job. maybe this could be rewieved by a DOCUMENTED drupal hacker.

function MYTHEME_preprocess_views_exposed_form(&amp;$vars, $hook) {
  // only alter the jobs search exposed filter form
  if ($vars['form']['#id'] == 'views-exposed-form-MYFORMID') {

    // change the text of an exposed field label (BEF checkboxes here)
    $vars['form'][FIELDNAMEasinurl]['#options'][0] = 'a different label in search pages' ;
    $vars['form'][FIELDNAMEasinurl]['#options'][1] = 'than in edit forms' ;
    // this particular field has a common layout not the case here :
    // this will work but not with the BEF checkboxes layout I want
    //$vars['widgets'][FIELDNAMEinternal]-&gt;widget = drupal_render($vars['form']['partage']);

    // or the field was rendered by better exposed filters (here cheboxes)
    // search into better_exposed_filters.theme the function call you need (theme_select_as..)
    $vars['widgets'][FIELDNAMEinternal]-&gt;widget = theme_select_as_checkboxes_fieldset($vars['form']['partage']);

    // Change the text on the submit button
    // [...]

  }