All servers are back online!
Turns out the new Intel PRO/1000 Dual Port Network Adapter
was not the correct item needed for the additional capacity necessary to support the move of the firewall. I ended up reconfiguring my VMware ESX virtual host server to accommodate the virtual appliance firewall with the hardware configuration I was already running. In the process, I also upgraded the firewall to a newer system as well.
I won't be able to fully load it until I get the new server in to offload a few things to it, but the new virtual firewall does run better than my old Dell Dimension (a Pentium Pro 400Mhz system with 650MB of RAM and about 10GB in hard drive space - archaic by today's standards).