Domain Name Issues

<img src=”https://imagizer.imageshack.us/v2/150x100q90/849/zxlz.png&#8221; border=”0″>

How do I replace the above link into “millysinn.com”?
The index page says what its supposed to say, “business.com” but all of the sub-pages show the server link. I called up the host company all they would tell me was that its a Word Press glitch and they can’t anything.

Any help would be appreciated. Thanks in advance.

– Kykana