How to view flash pages in Ubuntu LiveCD
Download the deb file using the below command in a terminal
cd Downloads
$ wget http://fpdownload.macromedia.com/get/flashplayer/current/install_flash_player_10_linux.debYou should find this file in the directory Downloads or wherever you run the command
Double click on the deb file the Ubuntu software center should do the rest.

You could copy and retain the file in a flash drive in case you do not plan to create a distribution and are okay with installing it every time you use a live cd.