Details about Zone Alarm and it's logging features (including text log field descriptions) can be found in the [http://download.zonelabs.com/bin/media/pdf/zaclient65_user_manual.pdf ZoneAlarm manual]
The logfile can be tab, comma, or semi-colon delimited (user can make the choice).
Logfile located (on Windows XP) in C:WINDOWSInternet Logs