Hello, I have exactly the same worries, iptables logs are not stored. I found that if I restart the service rsyslog few logs appear in /var/log/syslog from the time of the stop and the time of start.
Thank you for your patch, do you know when it becomes available? uname -a Linux myhostname 2.6.26-2-xen-amd64 #1 SMP Thu Feb 11 02:57:18 UTC 2010 x86_64 GNU/Linux Nico.