The TTP seems to be a rar file. Some people just downloaded it from that iso site and extract CIA from it.
Well, waiting seems to be the better option, until we see if the new build released on the other thread by julian (page 85) is safe.
TTP files are unsafe, it's better to just use full .zip packages, no "modified" packages, and verify the checksum in my thread.
Also, the build was posted by julian20, but the changes were done by steveice10.