Firewall/NAT

I need some help I am trying to do a project using M0n0wall routers but I am having problems with this project and I need help.  So this is the project I have to LANs one is a 20.0.0.0/8 network and the other LAN is a 30.0.0.0/8 network. on the 20.0.0.0/8 network I have a Server 2k8 server IP 20.0.0.2 and a M0n0wall router LAN IP 20.0.0.3.  on the 30.0.0.0/8 network I have a Win7 client IP 30.0.0.2 and another M0n0wall router LAN IP 30.0.0.3. I have a 3rd network of 40.0.0.0/8 between the 2 routers.  The WAN port on the router on the 30.0.0.0/8 network is 40.0.0.2 and the WAN port on the Router for the 20.0.0.0/8 The IP is 40.0.0.3.  Okay so in the Firewall setting I have it set up to where all traffic will come through both on the WAN and LAN on both routers.  In the static routes for the 20.0.0.0/8 network I have the 30.0.0.0/8 pointing to 40.0.0.2 port and on the 30.0.0.0/8  I have the static routes set to point the 20.0.0.0/8 network to point to 40.0.0.3 port.

Now here is there the problem is. When I ping I can not ping the distant end's LAN port or computer on the distant end. So what I am saying is if I am on the 20.0.0.0/8 network I can not ping any 30.0.0.0/8 address. and if I am on the 30.0.0.0/8 /network I can not ping any 20.0.0.0/8 address.  Now if I put a Windows 7 Client on the 40.0.0.0/8  I can ping everything.   Is there any suggestions of things to check and to configure that would fix this issue.

I really need help on this bad... if anything I said above does not make sense please ask questions.  I need help badly.

Did you didsbale NAT and open up all the rules?  Did you put static routes in your 40.x.x.x gateway?