The "/forumpost" page:

Show a single forum posting. The posting is shown in context with
it's entire thread.  The selected posting is enclosed within
<div class='forumSel'>...</div>.  Javascript is used to move the
selected posting into view after the page loads.

Query parameters:

  name=X        REQUIRED.  The hash of the post to display
  t=MODE        Display mode. MODE is 'c' for chronological or
                  'h' for hierarchical, or 'a' for automatic.