[jdom-interest] Intallation / build error

[Kevin Broderick]

Hi,
Working on the basis that only the stupid questions are the ones you don't
ask, 
I'm gonna have to ask for some help. 
I've downloaded the jdom milestone build jdom-b4-src.zip and I've unzipped
it.
I set the JAVA_HOME variable and then execute build.bat. 
However, I get this error during the build:

----------- Java Document Object Model (JDOM) 1.0beta4 [2000] ------------
Executing Target: prepare
Executing Target: prepare-src
Executing Target: compile
Compiling 1 source files to D:\java\jdom\jdom\build\classes
D:\java\jdom\jdom\build\src\org\jdom\input\DOMBuilder.java:316: Method
getPublicId() not found in interface org.w3c.dom.DocumentType.
                String publicID = domDocType.getPublicId();
                                                        ^
D:\java\jdom\jdom\build\src\org\jdom\input\DOMBuilder.java:317: Method
getSystemId() not found in interface org.w3c.dom.DocumentType.
                String systemID = domDocType.getSystemId();
                                                        ^
2 errors
BUILD FATAL ERROR: Compile failed, messages should have been provided.

Am I missing a step somewhere?
I'm running jdk1.2.2 on WinNT 4 if that's any help.
Any help greatly appreciated,
Kevin