Virtual Server log file

Guys, please help. I am scratching my head now. I've created a virtual server. A web application is running on it. I've coded some System.out.println on few servlets, hoping to see the printed message on the server.log. However, I can't seems to find all these printed message on the server.log. Why? Please help me!

Thanks!

[340 byte] By [hotbaboon] at [2007-11-26 10:19:32]