Yep. 'T'worked. The only disappointment is that the Subject line from MacJournal doesn't translate over as the title of the blog post. Small quibble, for the moment. Maybe an e-mail will be in order.
(And it even shows up on the web-based Blogger! This is just what I wanted. I'll bet there is a way to do this with iBlog, but until I can figure it out, this'll do.)