Hi,
you are not giving much information on your problem...
If you have a wired computer directly to the router and are using XP you can go in the dos command line and type ipconfig if you can see 192.168.0.1 as default config then this means that the router is properly connected to your computer and that it gave an ip address to it. ( this would also work for wireless connection but after you`ve search for the access point named dlink ) Don`t forget to change the admin password !!!