Need help setting up dual subnet/router

Hi,

Am a bit of a network noob, so need some help.

I am trying to set up the following network:

Firewall:

Nat mascurading:

Static Routing:

I can reach the 192.168.50.51 computer from 192.168.0.5, but not the other way arround.

The 192.168.50.51 computer cannot ping 192.168.0.5 ,192.168.0.1 or the internett

What am i missing?