Robert, you DON'T need that any more. Just add this phrase (Login To GraphXntrix.com) in your site_header page, as you would do in any normal BV page. When the login script calls the site_header function, as you have created it in BV, it will place BOTH the image and the "Login to ...." above the form.
Unless you use the same site_header for other pages too. In that case, you would need to create a new function, let's call it "site_header1" just for your loggin script.
And, i have not been able to find your signin page. It gives me a "page not found "error.
Correction: i have found it. You had simply mistaken the link, missing the "n" in your domain name.
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contact me.