So! I'm here! Thanks to an invite code from denise.
I think I really need to create a separate folder in my email account now... but I got so used to the numbers of the folders I used most often that I have to determine whether to delete an existing folder and replace it with a Dreamwidth one (so that subsequent folders don't get shifted down in place), or just live with it.
I guess I should just put on my big boy panties and create the folder, and let others shift down. (In the new interface, they don't use numbers any more anyway IIRC.)