Easiest solution for you is to go back to the adobe site an download the .deb of acroread. Then install it with a command like
sudo dpkg -i ~/Desktop/Downloads/AdbeRdr9.2-1_i386linux_enu.deb
(exact filename and location (I'm assuming you are using a gnome desktop) may vary.
This should intall it in you PATH, and it will be available for other users on the machine too.