Outlook Express Update -- 
  X-Newsreader: Microsoft Outlook Express 6.00.2800.1123 
The lastest patch for OE6 is available in Q331923.  See my notes.  
It introduces Ctrl+H option to see threads that include one of 
your postings (suggest Show ALL message when using) 
-- Warning: no indicator for this toggle. 

Download from a link in the following  MS KB article.
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;q331923

Ctrl+H  is new, allows you to see your own postings, BUT...
   -- Not documented in  "keyboard shortcuts"  in OE Help
   -- You must be in  Show ALL Messages to see the entire
      conversation in a thread     (makes sense), but if you
      switch back to Hide Read messages it may look like you have
      no unread messages and that would not be true.  So this will
      take a little bit of practice.  
   -- Try in a group and you don't seen anything happen,  switched to
       another group and you have 64 messages on the folders display
       but none show up inside  -- oops you're in Ctrl+H mode
   -- There is nothing on the display to tell you that you are looking at
       only messages that you are a part of.   So it looks like there are
       no messages.    Ctrl+H  toggle  needs an indicator ****
  Other than that the Ctrl+H  toggle will be great,

  But I expect you will get a lot of people thinking OE is not working after
       using the Ctrl+H toggle
   -- accidental usage
   -- tried it but nothing happened, so forgot about it.
   -- postings disappeared that were there and read nothing