Nagios Error : /usr/local/etc/objects

Hi ,
Can any body help me out in the problem that i am facing regarding the installation of Nagios 3.0a4 on my Fedora Core 6 machine. The problem is that the important directory of /usr/local/etc/objects is not created, and i also didn’t get any errors during the installation of nagios on my machine. i need to make necessary changes to the files supposedly to be present in this directory. Any help in this regard is highly appreciated.

Thanks.
Shoaib Akbar.
ANE WOL Lahore.