Well, You do need linux as Windows can only mount the MyDocs partition which is vfat. Other partitions are ext4 which Windows knows nothing about. (but if you only want to save pictures/videos/music then windows could be OK as those are stored on MyDocs)

1.) Get ubiboot kernel; http://www.swagman.org/juice/ubiboot...boot-02_040613
2.) Get flasher (linux or windows, depends)
3.) Boot the device without flashing kernel permanently: "sudo flasher -k zImage_2.6.32.54-ubiboot-02_040613 -l -b"
4.) When the device boots, you will get drives mounted to your PC
5.) You will also be offered IP over USB, (if on linux, or in windows if you have ndis drivers) and you can telnet to the device in default address 192.168.2.15