installing new emacs on win 7

[Renato Pontefice]

Hi all,
until now, I had a pc with win XP. From one week, I had a new pc, wit win 7.

I want to install emacs (last version) and customize it, with a piece of
elisp script (that Nicolas send to me).
So, I think the thing to do is:
- installa last version of emacs (I can download)
- find the init.el
customize it

can someone tell me where do I can find that file? So I can edit it and
customize.

Thank you

Renato