Get LinuxLive USB Creator from: http://old.linuxliveusb.com/
Install linuxlivecreator
Download iso file
open linuxlivecreator
follow the steps
1 choose usb key
2 choose iso
3 choose much space you want for persistence
4 klik create
5 wait till done
6 enjoy your persistent usb key
notes:
-works only from windows
-BT4-R2 is not "supported" yet the program uses the set up for BT4-R1 but that's not a prob. The only diff is that you have to donload the iso your self where for BT4-R1 linuxlivecreator can download it for you.
- NO encryption
- Limited memory space to 4GB
Think this is realy the most easyest way to get an persistent usb key


