I can't get to http://192.168.0.30/

Every time I try to begin the configuration for my DWL-G730AP router, when I type the http://192.168.0.30/ in the URL, Gateway and Google tell me they can't find this address and instead give me a list of suggested web pages. My D-Link router instructions say to type the above in the URL and then a page showing where I can put in my username and Password will come up. But, this doesn't happen--the Gateway/Google page comes up instead. Any help would be appreciated. I have a Gateway PC and Windows Vista.

Thanks,
Alice
aihenry@graham.main.nc.us

Cannot connect via web browser(s) to http://192.168.0.30 when i put into the url the site of http://192.168.0.30 it doesnt open my the page with the passwords. instead they show me a list of other pages