Linux

binary	r-ant-0.3.tar.gz
source	r-ant-0.3.src.tar.gz

To install, just unpack the tar.gz file into your $ANT_HOME directory.

Windows

binary	r-ant-0.3.zip
source	r-ant-0.3.src.zip

To install, unpack the zip file into your ant installation directory.
If you plan to use the commandline version, you will also need to move the library scharr.dll (which can be found in the lib directory of the ant installation directory) to your windows installation directory (eg: C:\windows).

CVS

cvs source

see cvs page on sourceforge