Issue the following command:
rpm --prefix=PolicyAgent-base -i common-2.2-0.i686.rpm
This command installs the package common-2.2, which in turn installs the shared libraries from the agent binary.
If you install this agent again, you must perform this task again to make the required libraries available. Also, if you uninstall this agent you must remove the common-2.2 package as described in Agent for Apache HTTP Server on SUSE Linux: Removing the common-2.2 Package.