what do i download from here http://packages.ubuntu.com/oneiric/f...ugin-installer ??

this is what i get at sudo apt-get install flashplugin-installer

Reading package lists... Done
Building dependency tree
Reading state information... Done
Package flashplugin-installer is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

it was a different error las time i tried: unable to locate package flashplugin

i tried everything you guys said and i get stuck everytime
i don't know what i'm doing wrong ...maybe i didn't get all the steps exactly
youtube is not working :( ...but other videos work. the problem is i got no sound

@EDDY1 what do i have to do to install flashplugin-nonfree?

As snowpine said, the problem may be due to the ARM architecture of your laptop. I so not have any experience with this, so I don't think I can help any further, sorry.

http://www.adobe.com/support/flashplayer/downloads.html
use this link and download .deb file appropriate for your system and save it on your desktop and do the following,
open terminal and type sudo dpkg -i Desktop/install_flash_player_10_linux.deb and press enter ,I think it will solve your problem best of luck....

I tried everything you all said and now adobe flash player works.
I honestly don't know what was the right thing to do,
but I want to thank you all for your help and answers. :)