I'm trying to work with the Atom API (b2 0.92) and basically all I've found is stuff that says that they use the Blogger API. When I issue what should be a standard blogger request to get the blog list, I'm getting nothing but "No Blog Selected." eg:

GET http://myblog/xmlrpc/atom.php
(other headers removed)

should return me an XML list of the blogs.

if I do something like:

GET http://myblog/xmlrpc/atom.php?blog=5

then I do get a list of the default amount of most recent entries, as specified in the API docs.

Any help would be great.