Is there a Drupal 6 equivalent to template_preprocess_taxonomy_term()?
Managed to eventually figure this out myself. I'm using the following in template.php to identify a taxonomy term page in D6:-

&lt;?php
function THEME_preprocess_page(&amp;$vars) {
  if (arg(0)=='taxonomy' &amp;&amp; arg(1)=='term') {
    // do something
  }
}
?&gt;