Debian LiveCD with Trinity

Hello, my name is Dima and I'm a Puppy Linux contributor and Debian fan. I wish to create a Debian (or Ubuntu, if it won't work) LiveCD with Trinity and I don't know how to do this. I've seen the Ubuntu ISOs with Trinity and I want to do the same, but with Debian and a different choice of packages. I read about DebianLive and the manual method to construct an Ubuntu LiveCD, but the former's documentation is lacking and the latter seems complicated and outdated. At the moment I'm trying to figure out how to use Debian Live (according to http://live.debian.net/manual/en/html/live-manual.html) and I'm kinda stuck. So ... my question is: how can I do this (or, how did you create the Ubuntu LiveCD)? Thank you! Dima