problems installing SiteBuilder on RHEL ES4

[campbellm@]

Hi,
I have a server running RedHat ES v4 with cPanel 10.8.1 and I am having problems installing the Sitebuilder rpm. It installs the rpm ok with --nodeps, but it reports the following error:

Syntax error on line 17 of /usr/local/apache/conf/sitebuilder.conf:
Invalid command 'php_admin_flag', perhaps mis-spelled or defined by a module not included in the server configuration

Line 17 of that file has:
php_admin_flag max_execution_time 0

Can anyone tell me what the solution to this may be? I am presuming a module needs to be loaded (as the error suggests), but I am not sure whether this will cause problems with cPanel.

Thanks for any help,

regards,

campbell