Tomcat outputs php to stderr

I have Tomcat 6.0.18 installed with PHP 5.2.6 on Windows Vista Business SP1
Everything seems to working fine with no errors. except all output
genereated by php goes to stderr instead of the browser.
I used
http://blog.taragana.com/index.php/archive/running-php-5x-on-windows-using-tomcat-4x-or-5x/
 and http://wiki.apache.org/tomcat/UsingPhp to configure them.
What do I need to do to make the output of PHP go to the browser instead of
stderr?

Thanks a lot in advance,

Serge Fonville