IPSEC Tunnel Static Route

Hello All and thanks for the help in advance:

I have two Fortgate firewalls I have inherited and I am in need of some help.  At the head-end, I have a 90D and at the remote-end, I have a 90E.  The IPSEC tunnel had been created and I am trying to add in a route to a new network at the head end. 

So the network looks something like this:

192.168.20.0/24

192.168.1.0/24

-------------------

90D (192.168.1.28)

-------------------

Internet

-------------------

90E (192.168.2.253)

-------------------

192.168.2.0/24

I can get from 192.168.2.0 to 192.168.1.0 with no issues.  That was the IPSEC tunnel that was created before.  I am trying to add 192.168.20.0 

Attached to the 90D, I have a Cisco L3 switch (192.168.1.2) that acts as the router to the 20 network. The Cisco has a default route to the 90D (192.168.1.28) From the 20 network today, I can surf the web which is out of the 90D, but I cannot get to anything in the 192.168.2.0 network on the other side of the tunnel.  Nor can I get from .2 to anything on the .20 network

Traceroutes from the 192.168.2.0 to the working 1 network shows (from 192.168.2.95 to 192.168.1.250): 

Tracing route to 192.168.1.250 over a maximum of 30 hops

  1    <1 ms    <1 ms    <1 ms  192.168.2.253

  2    35 ms    37 ms    36 ms  192.168.1.28

  3    37 ms    36 ms    37 ms  192.168.1.250

Trace complete.

Traceroutes from the 192.168.2.0 to the new 20 network show (from 192.168.2.95 to 192.168.20.53):

Tracing route to 192.168.20.53 over a maximum of 30 hops

  1    <1 ms    <1 ms    <1 ms  192.168.2.253

  2     *        *        *     Request timed out.

  3     *        *        *     Request timed out.

  4     *        *        *     Request timed out.

I have added static route to the 90E, I thought that would fix the problem.  However, all I can do is tell it that the endpoint is the tunnel, not the router on the other end (192.168.1.2)

Any help would be appreciated.  

Thanks again