Nope... I can't get it to work. Not in Firefox, IE or Opera. Tried all of them. I've changed the folder and file permissions into 777 - no help. I've tried all possible (and impossible) api addresses. The xmlrpc file is located where it should be.
The funny thing is, that I have two sites from the same service provider: In URL A I have three blogs (WP 2.0) and Flickr works just fine. When I installed WP 2.0.2 there, it worked without problems, too, with Flickr. URL B is newer, and when I install wordpress there, the blog works just fine, but Flickr doesn't accept the api endpoint.
So I guess it must be an issue with the server side...