I have been using Paltalk for 10 years and never been asked for nor mentioned to a confirmation number.
Kerio firewall was one of the most annoying firewalls I have ever used. If you are on dialup as I believe, you have no reason for firewall anyway as each time you dialup, you are at a different ip address and why slow yourself down even more. Upgrade to XP and have built in firewall.
If you must use a firewall. you will have better results with ZA, though I personally would rather have a "good stiff virus" than any of them on my systems!