[Zope] Moving files

I have googled for nearly an hour for a solution to this problem, even though it should be quite simple. I have a manager user, I wish to overwrite dtml documents in my directory instead of having it create copy_of_file.html is there a way to do this? I am moving files from a development site to a live site. Thanks. -- Elizabeth // Lyz@PrincessLeia.com http://www.princessleia.com