There are a couple of bugs in Drupal 6.2 that are fixed in Drupal 6.x-dev that make it very important that Drupal 6.3 is used (or, since that is not currently available, Drupal 6.x-dev).
If you find yourself having troubles with the javascript (there are a few people who report problems that we can't figure out yet) the javascript part can be completely turned off and the UI largely works without javascript, though a couple of places (arguments, in particular) may be a little rough.