Ok im in hurry. so to the point yeah…

To install virtualbox.. you need new repository ang go to terminal. and copy this :

sudo add-apt-repository "deb http://download.virtualbox.org/virtualbox/debian lucid non-free"

next add verification Key

wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -

And now update and Install the Virtualbox

sudo apt-get update && sudo apt-get install virtualbox-3.2

and after installation:
search : /etc/init.d/vboxdrv.dpkg-bak change to /etc/init.d/vboxdrv
sudo mv /etc/init.d/vboxdrv.dpkg-ba /etc/init.d/vboxdrv

and open the virtual box then install windoxp lol: sample picture

thanks for watching