if you have a template created in dreamweaver, you can read the WB documentation to find out how to turn that into a website baker template.
its pretty simple, you dont include any content in the template, you place php tags where you want the content to be displayed.
making the menu work is a little more complicated but still not that hard! if you read the documentation and search around the forums youll be up and running in no time.
try downloading a template or two from the addons page and you can open them up and see how they work.
have fun, youll love WB
Yes the summons it quite well. I use Dreamweaver to make templates (i run WB locally with MAMP, so I get write-permissions and can edit the template and look at the result in realtime). Then just zip and install the template on the "real wb installation".
/Lotus