I personally would just make a HTML file on your hard drive that redirects to another one...
(this way, you're not screwing your users into using one browser (in the example, internet exploder))...
<html>
<head>
<title>Redirection in progress...</title>
<script language="JavaScript">
document.location="http://Your.New.Page/";
</script>
</head>
<body>
<h1>Redirection in progress...</h1>
If nothing seems to be happening, click <a href="http://Your.New.Page/">here</a>.
</body>
</html>
And friends. Etc
... installing gentoo ...