thanks for the help. I finally found that link but not where I expected it
I was a bit confused by your answer as a first time shopsite user, so I am asking for clarification.
What I want to do ( I created a basic layout design in Dreamweaver, with css ) is just provide a look and feel for the whole store (header, footer, color scheme). I picked a theme from the setup that is on the right track, but not exactly what I want. When you say that this might not work with the current store's functionality, and I might start with the current theme as a basis instead and modify it with css ... where would I go to select that theme (ftp or in the admin?) and modify it to match my design?
I appreciate the help.
Jeff