Updating Live Security CD

["Mister Dookie" <misterdookie () gmail com>]

Hey list,

Say I want to add a few packages or updates to the latest Backtrack
LiveCD, such as Wireshark or Firefox 2, what is the best way to
accomplish that?

Is there a way to slipstream additional files onto the LiveCD, or can
I save changes onto a USB drive or something like that?

Any help would be greatly appreciated!

Best regards,
John