Does the remote debugger still work in PHP4?

Hi, Does the port based remote debugger still exist in PHP4? I have rarely used it, but tried to enable it today, and I am getting no output at all. I am using PHP 4.02. The documentation does not seem to indicate that anything has changed from the way it worked in version 3, but I never used to have a problem and now do. Even if you do not have time to try to suggest what I might be doing wrong, I would be grateful if somebody could confirm that: A: It no longer exists - I should stop wasting my time or B: They have used it, it is still there - I will work it out if I keep fiddling Cheers, Luke.