This was a relatively easy process because I had already created a blog platform using Etherpad as a back-end. See: <http://annotalia.com>. Just wanted to share the below with HN in case others had my same predicament.
Instructions:
1. Download the script at <http://gist.github.com/461767>.
2. Register a private space at an Etherpad clone. Right now, I've tested <http://titanpad.com>.
3. Create a log file at <../log/etherpad.log>.
4. Make sure all relevant rubygems are installed.
5. Replace http://YOUR_SUBDOMAIN.titanpad.com/', 'YOUR_EMAIL', 'YOUR_PASSWORD' at the end of the file with your credentials.
6. Extract your original zip file to a folder. Run the script with that folder as an argument.
I've only tested it on my own server, but I will try to help you to get it to work if you post a comment. Apologies for the messiness of the code: I did it in a hurry.