If you are asking about enchantments, you have to build an enchantment table first. Then, you can enchant weapons and armor
You can't. Enchantments are only for tools and armor for now.
There are no 'spells' in vanilla Minecraft, just enchanting tables.
on windows on the folders thing at the to type in %appdata% then go to .minecraft than bin then delete the minecraft jar in it then put the 1.4 jar in
Download it of the INTERNET and then put it on minecraft
Unplug your hard drive and put it in your computer and get mods for minecraft
A full minecraft account costs $26.95
No
Put it on peaceful
no
no
no
No, but you can put it on a floppy.