[FW1] 3 NICS FW-1 on NT Configuration Issue

["Rog, Jake" <jake.rog@FW1-NOSPAMtimbercompany.com>]

Title: 3 NICS FW-1 on NT Configuration Issue

I need to know if what I am trying to do is possible, and if not what is the way around this.  Also, are there any good documents describing 3 NIC configuration on FW-1. (routing and FW-1 config).

External    NIC1: ..206.3 / 255.255.255.224 - Internet Router: xxx.xxx.206.1

Internal    NIC2: 170.168.217.30 / 255.255.255.128
  - On the same subnet 170.168.217.0, there is a Cisco Router 170.168.217.126 that
    is connected to parent company's network with other subnets like (167.148.0.0)

Frame-Relay NIC3: 192.168.10.2 / 255.255.255.128 - Frame-Relay Router: 192.168.10.1
  - 192.168.10.1 router is connected to 192.168.20.1 router on the other end.

Only NIC1 has a gateway configured.

All of the communications between NIC1 and NIC2 are working great.  I have just added the NIC3 to allow our office 170.168.217.0 to communicate with 192.168.0.0 office via frame.  BTW, I chose to use the 192.168.0.0 ip addresses and can use any OTHER addresses if I have to. (Do both NIC2 and NIC3 subnets have to be on the same IP Class, like class C, if yes it has to be 191.x.x.x with 170.168.217.0) I want the office on frame network to use DHCP from the server that is located on my local subnet.

Clients on the 192.168.0.0 should be able to get out to Internet NIC1, talk to my local subnet 170.168.217.0 NIC2, and talk to the parent company via 170.168.217.126.

Right now, clients from 192.168.0.0 can successfully communicate with Internet NIC1, and my local subnet 170.168.217.0, BUT CAN NOT talk to the parent company, specifically on of it's subnets 167.148.0.0, via 170.168.217.126.

There is a route right now that says: 
  DEST: 167.148.0.0 NETMASK 255.255.0.0 GATEWAY: 170.168.217.126 INTERFACE: 170.168.217.30

When I do a traceroute from the 192.168.10.1 (Frame Router) to 167.148.x.x it dies on 192.168.10.2 (NIC3).

Should I be able to do this???  If not why?  How else can I accomplish this???
Also, how do I need to configure each Interface in FW-1, for example:
NIC1: - other
NIC2: - valid-addresses
NIC3: - valid-addresses
???

What NAT rules if any???

Thank you in advance!!!