TSL Enterprise Firewall 4.7 Configuration Problem, Please Help

Hi,
I just download TSL EF 4.7 and sucessfully installed on my server including
the license. It has 2 ethernet cards. I have a simple scenario, I want all
my PCs on my LAN via eth1 to be able to access WWW at the internet via eth0.
I have configured TSL EF 4.7 to allow traffic from my LAN, and it never been
sucess. I also have followed tutorial from your website and the PDF included
on the CD. Please help how to make my TSL EF 4.7 works well. If it is needed
I can give you access to the server. Many thanks for your kind helps.

Regards

Willy