Where could i find & download other versions of LFS.

If you ask me why i could do that:
Well i could want to test older LFS physics and other stuff. Drifting.. Controlling.

On LFS website i only find Z28 and then before S1.

Where are older versions of S2? Like 0.5P or 0.5V, 0.5U

EDIT: I dont know the right section. Where is it ? :S

There are a few here (this is for other people who are interested, not necessarily you) and you can find more just by searching in Google (most of the places where you can download the newest version from LFS.net have older versions on their sites too).