I've made a couple of updates and you should now be able to manually search for the contents of hashed posts.
For example, arrow was posted today with Subject header 123602, but this is of no use unless you know that 123602 is actually arrow.111.hdtv-lol.mp4
So the indexer downloads a small part of the actual post and looks inside the rar file for filename. These filenames are now included on site search so if you search for arrow it should return release 123602 (there is also a dimension release that I manually added).
Unfortunately this does help sickbeard as that only searches release names but I am working on the script which updates releases names and category based on rar filenames where a hashed subject is used.
The good news is that at the moment, the usenet postings which are using hashed subject headers are not being taken down as quickly so you have longer to grab the post.