Properties of existing Web Part zones can be managed and new Web Part zones can be created using SharePoint Designer. This video shows how you change the orientation of web parts in a zone and how you can lock down various properties of web part zones.
Video Transcript
This video is part of the SharePoint Designer 2007 video tutorials DVD

I have “pages” set up on my SharePoint, but I don’t like that “pages” shows in the breadcrumb. For example, your site shows HOME>SITES>SALES>PAGES>WEBPARTZONESAMPLE. I want my PAGES to be hidden so end users don’t click on it. Can you tell me if it’s possible to remove PAGES from the breadcrumb? Thanks…good video!
No ‘non-code’ way that I know of to do that unfortunately.