Hi, thanks!
I was in Nigeria and set up the router (LAN and WiFi) and got all the PC's and server working as it should. But the guys had to wait for the ISP to install the Internet. I am back in South Africa and trying to help them remotely. Hence, waiting to get those details to you.
The ISP put a Cell Tower up (maybe a Mikrotik Antenna?) with one Cat5e cable coming into the DLink router. Now the guys need to enter the Public IP's, Subnet, GW and DNS into the correct place in the router so that natting can work properly.