Mac OS X load path

[Dmitrijs Ledkovs <dmitrij.ledkov@gmail.com>]

Hello.

I have tried pre-built carbon emacs, Aquamacs Emacs and Emacs.App, but  
I did not like that I cannot customise them fully.

So I have successfully compiled carbon emacs and installed it  
(overriding system emacs, yeah save space, no modified OS, oh well.)

Everything is ok. Until I got to the stage of installing additional  
packages (modes) and trying to make them work.

If I do "locale emacs" in terminal it points me to several places.

/usr/share/emacs/site-lisp
/usr/share/22.1/site-lisp
/usr/local/share/emacs/site-lisp
/usr/local/share/emacs/22.1/site-lisp

I don't understand why there is same directory tree in /usr/share and / 
usr/ocal/share.

Also I don't understand why do I have 4 site-lisp directories.

Where and how am I suppose to install everything. And how to identify  
where everything is installed to reduce my emacs installation.

installed auctex configure&make&make install, do load auctex.el it  
says it can't find it although it is in usr/share/emacs/site-lisp/auctex

With regards,

Dmitrijs Ledkovs.