I made some minor updates to to my Backtrack 4 – Bootable USB Thumb Drive with “Full” Disk Encryption.
I fixed a few typos and added a section towards the end that shows how to mount your encrypted volume from the Live CD/USB drive in the event you have issues and need to fix things.
I also added a bit that should get rid of the 'can't find modules.dep' warning that appears at boot time.
-Kevin