I don't know of any one that's done so successfully from the standpoint of
it being workable. And it's been my long-standing recommendation that it not
be done, that opinion is frequently covered in this forum. The code
Publisher 2003 writes is 499% different then FP 2003 code.
But I told you how to do it. I have not seen any issues with the actual
import of the files into FP.
Now that you've stated an issue, an error in importing in FP, I'll have to
refer you to the proper resource - an error importing html files in FP
you'll want to address with the FP forum - microsoft.public.frontpage.client
- and that forum would also be where you'd find any one that uses FP now but
previously used Publisher.

David Bartosik - [MSFT MVP]
www.publishermvps.com
www.davidbartosik.com