Rails on Dreamhost

Hi all,
I run “rails demo” under base directory and mydomain.com is parallel to demo directory. I make changes to demo program so it can show “hello world”.

Now I follow the dreamhost instrtuction to changes t fcgi, to chmod on public and …

But when I do “www.mydomain.com” I got “not found…” error. Can anyone give me a hand on this? MY depot program works great on windows local and I can’t get this deployment to work.