RodosLite is included in both the RODOS and the JRodos system. Installation is not required.
However if you like to test and play around with RodosLite you can download the standalone package here.
move the zipped archive file into a directory of your choice
extract the contents into a subdirctory
read the administrator guide in the docs directory on how to run RodosLite.
Compilation is possible but not required