Ultimate Boot CD

Hi! I am using cdshell, and trying to run ubcd5 from it. I use this command from cdshell: bcdw /boot/isolinux/isolinux.bin The ubcd5 starts, but when i try to start any program, i get "Could not find ramdisk image: /ubcd/images/fdubcd.img.gz" I have no clue how this ubcd with isolinux work...