Please, there now has to be someone who can get this working!

[Me Myself and I]

I have downloaded 

gcc-core-4.6.2.tar
gcc-java-4.6.2.tar

I have found that the both contain a directory named

gcc-4.6.2       107 Mb
gcc-4.6.2       151 Mb

What do I name what, and what should I do from here to
build the gcc (presumably first), followed by my gcj?