Problem with PHP4

[sanchez_jl]

I'm working with the apache server and PHP4 lib, and I can�t read the
externnal variables from a HTML page.
I have configured in the httpd.conf the variable track_vars as follows:

<IfModule mod_php4.c>
      track_vars on
</IfModule>

But in phpinfo()  doesn't appears the track_vars


 localhost localhost
sql.safe_mode Off Off
track_errors  Off Off
unserialize_callback_func

I have read in php  versions above 3.0,  track_vars is ever on, but I can't access to 
theGET/POST variables from a HTML page.

Thanks.
Jose Luis