If you can manage to login to the print server, the setup is easy. By default, the IP address of the D-Link should be 192.168.0.10 or 192.168.0.50. Make sure you comp has an IP in that network, like 192.168.0.99, then using a network cable, connect your comp to the D-LINK print server.
You will see many options, go to Wireless and enter you SSID, and WEP Encryption key you are currently using in your wireless network. Look at it as a computer you are connecting to a wireless network. Concept is the same. Click Apply to Save your setting.
Then go to Network, and assign you server an IP address in your real network which should be a static address.