Information from profiles is not being recorded by a contribution page

I created an organization on the demo page: http://drupal6.demo.civicrm.org/civicrm/contact/view?reset=1&cid=117 . I also created the contribution page here http://drupal6.demo.civicrm.org/civicrm/contribute/transact?reset=1&id=2 When I fill all the fields on the contribution page, it doesn't record any information on the organization. After I've submitted the contribution page and I go to the company name on the contacts list it doesn't contain any information I entered previously on the contribution page.
I was just wondering if that's a bug or what's the problem. But it seems so critical because that's one of the main points of having Civimember.