I really don't understand your question but I would suggest you try this:
1. Connect you modem to your m0n0wall WAN interface.
2. Connect your m0n0wall's LAN interface to one of your wireless router's switch ports (set its LAN IP address to an unused IP address on your m0n0wall's LAN. Disable its DHCP and don't connect its WAN port to anything)
3. Connect your PCs to your wireless router's unused switch ports.
4. Connect your Opt1 interface to a switch
5. Connect your servers to the above OPT1 switch.
6. Configure your m0n0wall as required to make the above work.
CS...