NOTE: Cocoon includes all the packages required to run out of the box (included Xerces, Xalan and FOP) so you don't need to download anything else to start.
NOTE: For earlier versions of Cocoon (which did have binary distributions). Due to the incompatibilities between JDK 1.3 and JDK 1.4, you have to choose between a binary version targeted for JDK 1.2/1.3 and a version specially targeted for JDK 1.4 (Using a build targeted for one JVM on a different JVM may result in runtime errors).