Apologies for this much delayed update. I have had the joy of a slightly discomforting flight back to Oxford for the new term and was, as a result, sadly without internet connection. The draw, team rankings and the grid have been updated to accommodate for 50 teams, rather than the original 49. All the documents below are the updated copies since distributed to the WSDC community.
THe CA team (Beth James, Aaron Maniam) as well as the man behind the draw (Simon Quinn) have done an absolutely fantastic job both in regards to the original draw, and the rather complicated extension to 50 teams.