Ant FTP Task not working

[Chow]

Hello Everyone,

I am trying to run a ANT script(on Windows 2000, if that helps)
which does a FTP (optional task) to a Unix box, and I get a error
saying
BUILD FAILED
file:H://build.xml:11: Could not create task or type of type: ftp.

Ant could not find the task or a class this task relies upon.

This is common and has a number of causes; the usual
solutions are to read the manual pages then download and
install needed JAR files, or fix the build file:
I have all ant.jar, Optional.jar and NetComponents.jar in the
Ant lib directory and also in the system CLASSPATH. I am not able to
understand what could be the problem. I saw that may people are facing
different problems but not at the inital stage like me here. I am sure
one of you out there will be able to help me out with this problem. I
tried this using both Ant 1.5.3 and also Ant 1.3 versions.

Thanks a load for your time.
Regards,
Chow.