Custom Taxonomy Term Template I would like to use a custom template for my taxonomy term pages. 
I attempted doing so by creating a hook in template.php like so

function mythemename_preprocess_page(&amp;$variables){
    if($hook == 'node'){
        if(arg(0) == 'taxonomy'){
            $vars['template_file'] == 'node-taxonomy';
        }
    }
}


And then creating a custom template called node-taxonomy.tpl.php

However the page does not change. 

I understand that I can achieve something similar using views, but since other sites are using different themes on our drupal instance I'd prefer not to change anything that relies on those views.
Theme hook suggestions are made based on these factors, listed from the most specific template to the least. Drupal will use the most specific template it finds:


taxonomy-term--tid.tpl.php
taxonomy-term--vocabulary-machine-name.tpl.php
taxonomy-term.tpl.php


Note that underscores in a vocabulary's machine name are replaced by hyphens.