http://acidborg.wordpress.com/2009/10/08/how-to-install-and-configure-os
sec-in-ubuntu-server-9-04/
(Mind you there was no need to compile).
Scott Closter | | CU Technical & Administrative Services Corp. | 250
627 3654
Make sure src/analysisd/compiled_rules/register_rule.sh is executable
and you're running the install.sh as root.