Normally when I'm creating feeds (which I have done a *lot* of, lately *g*) they start with http:// - I've never started one with feed://

That looks ok to me - if you click through to the profile, and then on the xml button link from there, you get a valid page. I think if you wait a bit you should find it picking things up properly.

If it checks and fails, then you might need to get it changed. But I think that's fine.