Most likely your coding required register_globals to be on. You can turn it on by creating a php.ini in your site's directory and putting "register_globals = On" inside of it. But the reason it is turned off is to prevent exploits of certain outdated/un-patched scripts. I recommend if this is the case, that you use the long notation of $_REQUEST['varname'], $_GET['varname'], or $_POST['varname'] instead of $varname. Register_globals will also be fully depreciated in PHP6, so now is a good time to get your code ready
