if you have not noticed, this is my ubuntu master thesis....
check it out and share it with your friends =)
to find what flash version you have visit here.
unfortunately flash is used by many websites and does not come with an apt repo for ubuntu 11.04
nab the tar.gz for "other" linux from in 64 or 32 what ever you run.
alt + f2
and thats it.... restart your browser
tar -xf install_flash_player*.tar.gz && rm install_flash_player*.tar.gz
mv libflashplayer.so $HOME/.mozilla/plugins
rm -rf $HOME/Downloads/usr