To work with dynamic sites like WordPress, you need a local testing server.
WAMP for Windows
XAMPP for Windows
http://www.apachefriends.org/en/xampp-windows.html
XAMPP for Mac
http://www.apachefriends.org/en/xampp-macosx.html
MAMP for Mac
http://www.mamp.info/en/downloads/index.html
Setting up a PHP environment in Dreamweaver
http://www.adobe.com/devnet/dreamweaver/articles/setup_php.html
Building your first dynamic website – Part 1: Setting up your site and database connection
http://www.adobe.com/devnet/dreamweaver/articles/first_dynamic_site_pt1.html
Nancy O.