Forgive me if im misunderstanding but sounds like you're in need of a little port forwarding to help you out here. Any fairly decent firewall/masquerading software should work. On the machine that gates to your DMZ, simply install/configure your forwarding software to send all packet request (for pcanyhwere I believe its ports 5632 and 5631) to forward to your web server machine. Im not absolutely sure but i THINK norton personal firewall supports this. And if you want a free solution, install linux on your dmz gate machine and use the firewall/masquerading code thats built into it. ( I use the latter solution myself .. works perfectly).
Hope this helps, -Terry
