Persistent linux mint install on usb?

i found some forum posts that use the method for installing ubuntu7.10 (by pendrivelinux.com) but the instructions seem to use commands for gibbon...do i have to modify any commands from that tutorial?
http://www.pendrivelinux.com/2007/09/28/usb-ubuntu-710-gutsy-gibbon-install/

I think the procedure in general is the same in every Linux.

There are instructions for Mint on pendrivelinux too, did you notice?

http://www.pendrivelinux.com/2007/10/31/usb-linux-mint-install-from-windows/

but isn't that installation not persistent?