Ethernet controller deleted

Hello,

hi there, can you help me regarding my laptop problem? i accidentally remove Atheros Communication Inc.(R) AR81Family Gigabit/fast into my laptop in add remove programs!
and after that happen, I cant search anymore into internet explorer. I tried to restore it in my computer but it doesnt work, When I look the device manager,... ethernet controller and network controller are in a question mark with a yellow color. I tried to search for the driver that ive been deleted but when i try to install it in my computer it says pls insert a cd or card to complete the installation of the driver!
S ometimes when I RESTART MY LAPTOP there is a folder showing,.... pls insert a cd or card to complete the installation. and thee is a option if you want to try in internet explorer to locate and download missing driver click next but there is always a problem beacause there are no internet even I have connection ?
pls help me to solve my problem. I am a seaman and I WAS HERE IN TH MIDDLE OF THE SEA i dont what to do pls help me