I have just finished documenting a new method to simplify the Wikidot install process on a home Ubuntu server.
I spent some time learning a little bash scripting and came up with a set of scripts to simplify the install process. I'm sure this all could have been done in a single script, but hey, I'm a rookie with this stuff!
The new howto is here:
The Easier Wikidot Home Network Install
Please give it a test drive if you're so inclined and let me know if you have any problems.