help ..dvd writer

[theted]

hope someone can help me out ...i bought a pioneer-112d dvd/cd writer with no instructions,ive aready got a dvd /cd writer but i want to install a second one, the pc tower has a second slot on the tower for it to go,it's a sort of spring flap..when you press the eject button the tray pushes the flap out...can someone pleasssse give me some instructions on how to install this second dvd writer..my computer is a ACER E380 4000+..kind regard's theted