What IP did D-Link say was on the LAN side of the router? It should say in the manual.
It should be something like 192.168.1.1 with a subnet mask of 255.255.255.0 for example.
Set the IP on the network port of one of your computers to (in the above case) 192.168.1.99 with the same subnet mask as above. Leave everything else at default settings.
Make sure that computer is connected to a LAN port on the router using a patch cable (not a cross-over cable).
Open a command window - Start>Run and type
cmd.
At the prompt type
ping 192.168.1.1 (or the appropriate address in your case)
If you get "timed out" errors then double check the address of the router.
If you get responses with times like "3ms" in them then close that window, open your browser window and type the address you used in the Address bar.
A webpage should open, in your browser window, which lets you configure settings in the router.
Is this what you are looking for?
hth