I think TFC's mod manager can run on the pc, but that's all that i know
Morrowind, Minecraft
ore spawn or hexxit
He is only in if you add him by a mod, there are many.
There are probably many Herobrine mods out there.
Yes. you can use INVEdit.
The same as a pc install it go to run do %appdata%/.minecraft/bin hazzah!
Mojang does not sell previous versions of Minecraft. If you have a Minecraft account, download a mod which allows you to play previous versions of the game.
You mod it, or be smart and just buy the pc edition.
'Heaven', or the Aether, has to be added by a mod. It is not part of the base game.
If you use MultiMC you can have multiple copies of Minecraft installed on one computer, with different versions and mods.
The Aether is a mod and you can only get mods for the PC version