i can only recommend reinstall the rpm again and try that:

rpm -ivh tripwire*bla

cd /etc/tripwire/
rm twpol.txt*
wget ftp://downloads.umbc.edu/pub/umbc/rh...iles/twpol.txt
change in the twpol.cfg file the hostname and set it to your's machine name
./twinstall.sh
enter a site and passphrase - both are u,don't forget it :-))
/usr/sbin/tripwire -m i
rm *.txt *.sh
then it should be ok!!

hope that helps,

cheers,