I can't be of much help, since I'm currently in the process of bringing my MessagePad 2100 online via a wireless card. I was curious to try nBlog myself once achieved the online stage.
I'm subscribed to the NewtonTalk Mailing List -- if you want I can relay your nBlog-related questions there. Have you tried writing Adam Tow himself or the author of the blog you found (myapplenewton.blogspot.com) for some kind of feedback? Maybe they can be of help; especially the author of the Newton-related blog, who seems quite proficient at using Newton-centered solutions.
Cheers,
Rick