i've been wanting to upgrade to kanabona.com to drupal ver 6 for a while and i finally found sometime to do it. the upgrade was straight forward.
step 1: updated drupal 5: updated the drupal core and then updated the modules. ran update.php. this updated the database to the lasted ver 5.
step 2: installed drupal 6 core and ran updata.php. this updated the ver 5 database to version 6.
step 3: installed a new drupal 6 theme.