It would be go to use the drag and drop like in To Do’s to make one file become the latest version of another list of files (Like Upload a new versions). Try as I might, people forget to use the upload a new version link and the latest version of a file becomes an orphan. Otherwise, is it possible to do this in the api (not so exciting).

Garry Robinson
www.vb123.com.au/basecamp

Glad to know this is a common problem for other people, too.