Try
follow by the root password.
It will get you the root privilege ro run system-related commands.
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Back to your problem
According the note I kept my Freespire 1.1.73 it has Grub as the boot loader. If that is the case show us the output of "fdisk -l" and the content of /boot/grub/menu.lst and we would advise how you can boot both systems. Should be a piece of cake.