I updated the sage live CD for the new version (4.7.1) and also made a
windows exe installer.
It uses some dark voodo powers, so it is not for the faint of heart.
No warranty, use at your own risk.
Cautious users may use it on some old, slow and otherways useless
windows box first, to gain some trust.
The bold ones can try to throw it at the latest and fasted quadcore
super duper 64 bit workhorses.
2) www.mydrive.ch (user: download@sagelive, pwd: mathematics)