Help me use UCK!

I need to change the kernel from the ubuntu 9.04 live cd and i tried using UCK but it failed

i want to install ubuntu to my usb but the default kernel has a bug that does not allow me to do any sort of installation of ubuntu to my usb (neither persistent nor full)

there is more info on the bug here:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/350946

i tried looking for a guide on the net but i couldnt find one

could you guys help me out with the procedure of using UCK

i used UCK in ubuntu 9.04 which is install in virtualbox 2.2 and here is the log i got when it failed

Ubuntu Customization Kit 2.0.8

Starting CD remastering on Thu May 21 19:04:49 PDT 2009

Customization dir=/home/daniel/tmp/customization-scripts

Removing remastering root dir...

rm: cannot remove directory `/home/daniel/tmp/remaster-root/tmp/.X11-unix': Device or resource busy

Removing ISO remastering dir...

Mounting ISO image...

Unpacking ISO image...

Unmounting ISO image...

Removing remastering root dir...

rm: cannot remove directory `/home/daniel/tmp/remaster-root/tmp/.X11-unix': Device or resource busy

Mounting SquashFS image...

Unpacking SquashFS image...

Unmounting SquashFS image...

Removing win32 files...

mount: mount point /home/daniel/tmp/remaster-root/proc does not exist

Failed to mount /home/daniel/tmp/remaster-root/proc, error=32

mount: mount point /home/daniel/tmp/remaster-root/sys does not exist

Failed to mount /home/daniel/tmp/remaster-root/sys, error=32

mount: mount point /home/daniel/tmp/remaster-root/dev/pts does not exist

Failed to mount /home/daniel/tmp/remaster-root/dev/pts, error=32