Default "home" in page menu, how do I attach a post or page to it?

I know this is probably a stupid question but I have spent over 3 hours or so looking and changing things to try to figure it out. I deleted the post or page that the default "home" in the page menu points to and I cannot figure out how to get it back. I can create a post or page but I cannot figure out how to get it to work with the "home" in the page menu. Below my header I have the "something you are looking for is not here" message.

If you put the word "Home" or another Word/Phrase into Theme Options -> Page Menu Bar -> Home link in Page Menu Bar, a link with that Word/Phrase will be added on the left hand side of the page menu bar, and the link will point to your homepage at yourdomain.com/

Sorry, but this isn't working for me, I think.

My site is here: http://www.gbw247.info/gh-a/

The page that SHOULD be the HOME page is actually: http://www.gbw247.info/gh-a/?page_id=2

The internal structure isn't a problem, but when pointing to the top level site address, it goes to the wrong page.

Any help would be very much appreciated.

Thanks, Graham.

What is in the Site address (URL) box in the General setting of WordPress? That should be the address of your home page.