Your question / problem is a bit unclear so I understand why MBH is writing multiple solutions. He's mine :
If you want to redirect the currently active script to another page (be it php, html or some other thing) you can use this :
header("Location: $url");
.. where $url could be (but not limited to!) something like this :
a.html
http://www.yoursite.com
test/it/now.asp
script2.php
.. and so on.
Hope it helps? And take a look at http://www.php.net/header ...