Hey,
Although we forgot to send a note here, Drupal 6 translation packaging works for a few days now, so feel free to tag your translations for Drupal 6, and please follow the naming guide (ie. use the same name as in drupal-pot but with .po extensions not .pot). The latest version of localization server also includes a flat export format, which exports files as you need to commit them to Drupal.org CVS.
So get those translations flowing!
Gabor