Internet Setup:
Internet Connection Type: DHCP

Network Setup:
Router IP: 10.10.1.1
Subnet Mask: 255.255.255.0

DHCP: Enable

I assume your current pc in its current set-up plugs into a wall socket? Plug the WLAN port of the router into that wall socket. Now, plug your pc into one of the 4 ports on the back of the router. The WLAN port is usually separated from the 4 switch/router ports.

Your church is using a network address of 192.168.1.x. We must choose a different network address for your router (10.10.1.x), because, well, that is what routers do - route between different networks. We could have chosen 192.168.2.x or 192.168.100.x, but I think a network that begins completely different will help you track down problems if they arise.

That should help get you started.