http_referer question for DB access

Hi there everyone, I have a system which dynamically creates a template based website which can be turned on or off by a switch, to access it a user would do http://www.websitename/templatename and then it would produce a 404 (NOT look for a dir as this allows me to use a DB switch to enable the system). However, when they enter a similar URL as the above it DOES redirect using: ErrorDocument 404 /redirect.php BUT the PHP page it redirects to, which has the following code: <?php echo $_SERVER['HTTP_REFERER'] ?> DOESN'T show the referrer page and I MUST have that in order to find what template they are aimining to look at. I can't query my MySQL DB without this information, am I doing something wrong? I did it once before about a year ago but no longer have the code and I SWEAR I did it this way. Any help would really be appreciated. Chris