In case it helps anyone else: When I am on the computer, I don't use the New Post BUTTON, per se. I added a link on my browser instead. (I have no idea what the technical terms for these things are.) But, like, there's google, yahoo, etc., and then I added car-seat.org, only instead of it going to the home page, I set it to go to the New Posts redirect. (One time I hit the New Post button and quickly copied the URL thingy, then used that to add the bookmark to my browser bar.)
Is that making any sense?
Anyway, if you can do the same thing with the thing Darren is talking about, that might be a good solution if you don't want to hunt around in menus and whatnot.