As I mentioned earlier, TrustFlow has been taken down because of the load it causes to LiveJournal. The good news is that LJ are proposing to add new capabilities to their software so that TrustFlow can start up again while causing less load on their servers.
For more information, see the proposed new protocol and discussions on 2003-09-09
led by ciphergoth and 2003-09-10
led by bradfitz.
This should be a big improvement for everyone who wants to write scripts that analyze LJ data!