Cannot publish changes to pages previously edited in MS-FrontPage

Binary package hint: seamonkey

I am trying to update a website that was previously created and published using MS-FrontPage 2000. I can edit the pages without a problem using Composer. But when I try to publish these edited pages, Composer connects successfully to the remote web server, but is not able to upload the edited files. Eventually the publish session fails claiming that there server is not available, yet it was able to successfully sync unchanged files. Only edited files fail with the server unavailable error.

ProblemType: Bug
Architecture: i386
Dependencies:

DistroRelease: Ubuntu 8.10
Package: seamonkey None [modified: /var/lib/dpkg/info/seamonkey.list]
PackageArchitecture: all
ProcEnviron:
 PATH=/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: seamonkey
Uname: Linux 2.6.27-9-generic i686