Some improvements that would help browse large topics like "TMC Completes Massive IBM J2EE / .NET Study":
- display the posting starting with the last;
- load only the last 20 postings and provide buttons for 'next' and 'previous' groups;
- provide the following links to browse a thread: 'parent', 'child', 'next sibling' and 'previous sibling'.
Also you could add a page for postings related to topics no older than 1 week.