CentOS - May 2011 - Netfilter connmark module libxt_statistic.so

Hello Everyone, I'm making an load balance ,on output packages IP from
my firewall to Internet,  with netfilter connmark and statistic match
modules. it's necessary those two modules togethers to do the load
balance on connection state.

well I'm using CentOS 5.6 and I've searching on Internet but haven't
found any package RPM that.this package come with iptables 1.4.x
version and CentOS 5.6 still installs , for default, 1.3 iptables
version.

the package connmark it's ready for default on CetOS 5.6. but the
statistic mach module doesn't.

the module name is libxt_statistic.so and I've found it only available
in build compile.

anybody know if there is how update the iptables to 1.4 version in
CentOS 5.6 by rpm packages? this way seem that is installed
libxt_statistic.so module too.


thank.