Multiple Static IP's Configuration of ERlite-3

Hello.

I would like some help to configure the ERlite 3 for the following topology. Config file is also included.

I laos have another problem with the  ESW Switch username and password I'm dealing with and a reset now include reconfiguring VLANS for two groups. Internal and Private Group.

The attached toplogy gives an idea of what I'd like to accomplish. That is Internal group and Private group having their own NAT'd Internet Public IP.

I would want to isolate the networks in eth0 / eth1.

firewall rules to protect the router

source and destination NAT

transparent webproxy

I'd very much appreciate a little help or guidance...thanks much.