I just want to share this with anyone who might encounter similar problem. I had this frustrating experience but finally found the solution in this link which offers a step-by-step tutorial. Hope this helps.
http://www.leeindy.com/firewall_pccillin-1.shtml
How to Configure Trend Micro PC-cillin Personal Firewall to allow File Sharing
Discussion in 'Networking and Wireless' started by joycecylam, Apr 8, 2006.