Bonitas web. Zak Williamson de Adobe, comento sobre este tema hace tiempo:
If the accented characters are not appearing correctly after being uploaded to your hosting provider, then it's likely the FTP client you're using is mangling the characters during upload. If that's the case, try a different FTP client (i.e. Filezilla).
You don't mention whether the characters appear correctly in Preview in Muse and Preview in Browser, but I'm assuming they do.
Que cliente FTP usas?, se previsualizan bien antes de subirlas?