The "/forumthread" page:
Show all forum messages associated with a particular message thread. The result is basically the same as /forumpost except that none of the postings in the thread are selected. Query parameters: name=X REQUIRED. The hash of any post of the thread. t=MODE Display mode. MODE is... 'c' for chronological, or 'h' for hierarchical, or 'a' for automatic, or 'r' for raw.