Updating dreamweaver templates
The instructions above are the way that I found is best to avoid this problem.
I have an existing site in a path, and I've pointed the Dream Weaver site to it. But whenever I save this file, none of the html files which should make use of it change.
So then we have 2 process streams running at the same time.If the only changes made to the template relate to one or more elements contained in an attached/linked file (such as a CSS style sheet or JS file), which changes file itself, click "save all" - undo the change and click "save all" again.This step is really not entirely necessary, as the changes to dependent files can be affected to the website by putting the dependent file to the website.But if the rest of the design elements vary from what the template contains, Dreamweaver will preserve those tags alongside what the template will introduce which usually creates a ton of duplicated tags and broken layouts.
You would be FAR better off creating new, blank pages from the Dreamweaver Template and copy/pasting the contents into the editable area and then overwriting the "old" pages with the Save As command. I realize this original question was posted some time ago, but for anyone who might encounter this problem in the future, I am posting my solution.You will always have the following line after the Without the above, the child pages will not respond to the template. Unless the existing pages match up with the template exactly, you are going to have all kinds of problems getting the template to play nicely with the existing content.