Hi Dave,

well this thread is out of topic here, has nothing to do with the sitemap extension.
I think that almost everyone has received the Google warning about JS/CSS files blocked.

The latest version of Joomla is ditributed already with the robots allowing access to common JS/CSS files thus the problem should not arise anymore.

In other cases normally it's enough remove the Disallow directive for:

Disallow: /images/
Disallow: /media/
Disallow: /templates/

Of course if some extensions uses JS/CSS files in its own folders this could not be enough, and other folders should be allowed in the robots.

Developing an extension that automates this could be an interesting idea.

Greetings

John