browser.ini

I wonder if someone can help me.  I downloaded browscap.ini off a site (I
forget which , but its one that others have downloaded it from as thats
where I got the URL).  I put it in /var/lib/apache/lib/ - I updated my
php.ini to reflect this, and restarted apache. So...

I used the following code out of the helpfile -
<?php
function list_array( $browser ) {
   while ( list( $key, $value ) = each( $browser ) ) {
          $str .= "<b>$key:</b> $value<br>\n";
   }
   return $str;
}
echo "$HTTP_USER_AGENT<hr>\n";
$browser = get_browser();
echo list_array( (array) $browser );
?>


So - why do I only get this output and more to the point, how can I fix it?

Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
----------------------------------------------------------------------------
----
 0:

Thanks.  I desparately want this to work.

Liz
PS - Im reasonably new and so yes its probably something real dumb.