Taxnomy template pages not working

I’m running the latest version of CustomPress and WordPress 3.0.4 Multisite on the Genesis Framework.

I’m using a heirarchical custom taxonomy for Location e.g. County and Towns. I’m using the template hierarchy to display custom templates for categories etc. However, I can’t get the taxonomy templates to work.

taxonomy.php works fine.

taxonomy-location.php doesn’t work.

taxonomy-location-naas.php doesn’t work.

Have you any idea why this would be the case? Below is a link to one of the taxonomies in question.