Can I use WPD with a WordPress site I already have?

Is it possible to import an existing WordPress site into WPD?

• importing
• installation

How do I install your recommended WordPress plugins if I've imported your site into WPD?

How do I install your recommended WordPress plugins if I've imported your site into WPD?

• FTP
• importing
• plugins

Do I have to use all the WP Direct plugins

For instance, I use Statcounter not Google Analytics and I'd prefer to go on doing that. Secondly, I am importing existing sites which use phpBay. I've found that cache plugins mean the ebay listings don't update, so I don't want to use a cache plug

• cache
• importing
• plugins