Threaded as in...
Main Topic
..Reply
....ReplyToReply
..Reply
....ReplyToReply
......ReplyToReplyToReply
........ReplyToReplyToReplyToReply
........ReplyToReplyToReplyToReply
......ReplyToReplyToReply
....ReplyToReply
..Reply
..Reply
Oh yes, like at du.com?
That IS easy to navigate.
That's how it looks to me when I click on a particular thread.
Have you tried changing your pagination, subscriptions, browsing and other stuff at My Preferences?