Foren / Cotonti / Core Labs / Archive / Installation scripts plugins

Ok, I see...

But, how do I show some output (result from my installation) to the admin installation process...

There are tags and all sorts off stuff in the installation..
Is there a manual somewhere on how to use this.

Added 1 day later:

hey guys, does anybody now how to do this, i would really like to make nice plugins with nice installation...
I you have some documentation on this, please let me know.