Javac is not recognized

Before anyone says that there are other topics saying the same thing i would just like to say this, "I know that and, all they did was get the program running part working". My problem is that every time i try to compile my program i get

"Javac" is not recognized as an internal or external command, operable in a program or batch file

I need to know how to fix that. From what i was reading you have to change "Path" in your environmental variables. Here is what i have in mine.

%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;c:\j2sdk1.4.0\bin

And my computer is a windows xp (if that makes a deference)

[676 byte] By [Mdoga] at [2007-11-27 4:21:06]