To download it, simply go to the official Anvil Demo Site and get it from there.  The site also has plenty of information on the theme’s features.

We’ve been writing custom themes for clients for quite some time now, and felt it was time to give a little something back to the WordPress community.

So we did a fully GPL theme, complete with a Fireworks png, all sliced up and ready to be re-exported in such a way that you can completely change the site’s design without ever touching a line of code. You have to work within the limitations of the graphical elements, but there’s no doubt there’s a lot you can do.

You’ll see variants of the theme in use around the place – on the satirical motoring site Sniff Petrol on Dave Coveney’s site, and in a few other places soon we hope. We have high hopes for the underlying platform of this theme – it brings with it a navigation widget to give you fine control of an elegantly styled sidebar, an easy to customise contact form page template, and much much more. It’s a theme for people who like to expand what they can do with WordPress. It’s also, of course, xhtml 1.0 transition, works on every browser we tested on, and the work of a dedicated team of professionals.

Anvil Theme Official Demo and Download Page