iptables - version on suse cd

Hi List, just a question concerning iptables v 1.2.2 shipped with SuSE7.3 : Is it OK to install this version? I saw there are newer versions available at netfilter.org but in the SuSE-Update-Download-section no update is available. Are the bugs not security-related? Thanks for help and/or furthermore infos, links etc Regards Ruediger