Maybe hook_content_extra_fields might help shed some light but I’m clutching at straws here and if there’s a heap of fields it might not be worth it. See http://www.lullabot.com/articles/great-pretender-making-your-data-act-field for a decent write up.

>Most of the $node->content sections do not appear in the CCK list because those modules don't make them available.

>>Have you tried simply dragging the field order around under Content Type >>  Manage Fields?