Eurika! I've got it!
Ok, page 43 of the document has the two proposed models. The first one, adds a 4th European seat... Ok, that's what was confusing me. It would actually add 6 total new seats to the Security council.
Wow, I'm all for SC change, but 11 permanent members, each with a Veto? heh, if we thought the UN was a total waste of effort now, after this reform nothing will ever get done.
Thanks Krusher, this is a very interesting topic. I think that they included model "A" only to make Model "B" look better. There's no way that all 5 permanent Members will accept A, but I bet they will accept B.
-Sik