The latest version of R is R-0.63.3  You can find this in the file

	R-0.63.3.tgz

There is also a patch set in R-0.63.2-0.63.3.diff.gz
and a split version (floppy sized bites)

Note that some binary Java .class files have been modified and can NOT
be patched in. They are provided separately in R-0.63.3-javaclass.tgz
(to be unpacked in .../doc/html/search )