IP address not resolving correctly

Hi,
I’m having trouble with a new web site that I’ve created. The problem is that when I enter the address in a browser it tries to resolve the address to the internal address (192.168.
0.2) and the browser displays the “page cannot be found.” However, when I ping the site I get the correct address. Does any one have any idea of what’s going on and how I can fix this?
Thanks a lot.