The WIRED 4 source code lives in a svn (subversion) repository.
To get a copy of the code locally, for compilation, you need to have a subversion client installed, capable of handling the 'svn' schema.
Type:
svn --version
to see if you have such a client. If not, visit the subversion website to install one.
Check out the WIRED 4 code by issueing the command:
svn co svn://svn.freehep.org/svn/wired/plugin/trunk wired4
which creates a wired4 subdirectory and puts the latest revision of WIRED 4 in it.
The HepRep plugin source code is available from the JAS 3 CVS repository.
The HepRep interfaces and reference implementations are located in the FreeHEP CVS repository.
Check out the CORBA HepRep Client code by issueing the command:
svn co svn://svn.freehep.org/svn/wired/corbaheprepclient/trunk corbaheprepclient
Check out the WGF code and BaBar geometry by issueing the command:
svn co svn://svn.freehep.org/svn/wired/wgf/trunk wgf