I would like to know if the CHX Packet Filter Firewall is free for home users? Please advise. Because the following statement says this: "CHX™ products are free of charge for non-profit activities by home users, students and charitable organizations. To obtain a link to the full version and a serial number via e-mail please use the following form". But at the bottom, it tells you to download a TRIAL version... Im confused. But, looks good for a firewall. IF IT'S FREE..... THEN IM IN HEAVEN!!!!!!