Its always good to see new walk through's for different installs.
When I wrote that it was for Debian lenny so the methods of install my have been changed or updated. I have not made it that far yet for Debian 6 as I am working on migrating a server over to 6 now.
Please be my guest. If you need to you can use anything out of my article if it helps.
Thanks for the support!
Take care of your local Veterans and Community.