lot of people like me are waitting for the xmlsitemap drupal 6.x compatible version. the newest version till today still for 5.x. there is a 6.x edition but only compatible to drupal 6.0 RC. it does not support finall release of drupal 6.0 and 6.1

i made a 6.1 compatible edition by combile xmlsitemap-6.x-0.x-dev.tar.gz and drupal6_7.patch from this thread. someone else has made another version. you can download it from here before the official release.
it works fine on drupal 6.1.

but it not compatible to the i18n module as it create alias to the default language only.
multilingual site still have to waiting.