crsmit8
Villager
with windows seven you can restore previous versions go to the file %appdata% click .minecraft you will see the bin folder right click it then click properties then in the file it will have a slot saying previous versions you can choose the file you want say from the day before 1.2 then copy all the files in it then exit.
then go back to %appdata% and doubleclick the bin delete everything in it and paste the files you copied
then go back to %appdata% and doubleclick the bin delete everything in it and paste the files you copied