A new release of Gnome Network Monitor is availiable as a source tarball or RPM for Fedora 6 (Fedora 7/Rawhide on its way).
This release adds a proper l18n/i10n support and fixed various bugs in the netstat tab.
See http://gnetworkmonitor.sf.net for more details about the package.
Please file bugs if you encounter any!
http://www.linuxlinks.com/portal/news/article.php?story=20070516075933120