SuSE Firewall on CD - Traffic Logging

Hello all, we are using Firewall on CD now for a while, but one of our customers wants to log the traffic amount (like NTOP or iptraf, for example). Since this distribution is on a CD, we can't install additional programs (surprise! ;) ). We don't want to install another machine as host for a logging program, so is it possible to use the IP-Chains log for traffic logging purposes, or is on the Firewall on CD a program, which is suitable for this ? Thanks, Alexander Reach