Hey,
Drupal 6.0 RC3 is out and it means a small amount of work for you. We noticed some string which were not translatable and needed to modify one or two strings as well. It should be quick to adapt to this version. Note that Drupal 6 final is expected to be out sometime next week, unless something wrong happens, so if you can get your work out to be committed to Drupal.org, then all our users could use the translations.
Drupal 6 itself includes instructions on how one can download translation packages from Drupal.org, so it would be important to have the packages sitting there. A note to l10n_server users: upgrade to the latest version and use the flat export format to export files for CVS commits.
Let me know if there are any problems / questions.
Gabor