Unable To Open Spam.scanning.rules - MailScanner

I was trying to install mailscanner on a cpanel box using chirpy's script [url], followed every step, until this:

Code:
[root@server.yourbox.com:~]perl mscpanel.pl -i
Unable to open spam.scanning.rules for reading: file or directory doesnt exist at mscpanel.pl line 115.
On the 115 line i found this:

Code:
open (IN, "</usr/mailscanner/etc/rules/spam.scanning.rules") or die "Unable to open spam.scanning.rules for reading: $!";
The file /usr/mailscanner/etc/rules/spam.scanning.rules just doesnt exists... maybe chirpy's script is not working well installing everything its needed..