I have followed these instructions: http://codex.wordpress.org/Giving_WordPress_Its_Own_Directory so that WordPress files are tucked away in a folder not cluttering up the top-level domain.
However, I now find that I can now not preview the themes. It just shows the current theme for all previews.
Also the admin bar does not work when previewing at the front end (eg. can see when viewing domain.com/wordpress, but not under domain.com).
Can anyone tell me how I might fix this?