It can be done with a simple JavaScript, just use tis as your welcome page:
<html>
<head>
<script language="JavaScript">
function MoveAlong() {
self.parent.location="http://www.mynewpage.com";
}
</script>
</head>
<body onload="MoveAlong()">
<div align="center">
This page has moved<br>
if you don't get redirected,<br>
<a href="http://www.mynewpage.com" target="_top">click here</a>
</div>
</body>
</html>
