How do I change the url for the "Home" links?

I'd like to be able to change the url's for each of the "Home" links in my website. Right now a customer goes to thephooiestore.com and gets the home page no problem, but if they navigate somewhere else in the site and click the logo or one of the Home buttons, they'll be sent to thephooiestore.com/shop, which will return and error page. (You can try it for yourself if my explanation doesn't make sense).

So what file(s) do I go to in order to change the Home url's?

Thanks!

It appears that your Zen Cart is actually installed in /shop/. You presumably have a redirect that makes thephooiestore.com go to the files in thephooiestore.com/shop/. As for why the index page in /shop/ is not displaying when called as such, I don't know.
I think what you really need to do is move the store folders to the root. Is there any reason why you can't?

Thanks for your input. I tried moving everything to the main directory and still no success. After several calls to my web host over the last few days, we determined that my account was not seeing the index.php file and they fixed it. So now it all works as it should! Whew!