Episode 23 is still not available as 720p.

This is "Amplification".


The season finale (E25 & E26) in 720p: 
https://thepiratebay.ee/torrent/4907174 




nfo:

Criminal.Minds.S04E24.720p.HDTV.x264-CTU
date: Thu May 14 2009
Looking for cappers with quadcore i7 CPU and 5+Mb/s upload in Eastern/Central
time in the US/Canada. We have nothing to do with any websites, torrents, or
usenet, so don't bother asking us about them.




Edit: AiTB just upped this episode in scene format (50 MB parts):
https://thepiratebay.ee/torrent/4895283