Well, Mr. Darlington seems your question has gone unanswered for awhile here.
The World Championships are typically held around the end of October. Dates and times are usually announced in mid to late August. Of course, signing up for the Championship newsletter on the front page of this site is a sure way to keep yourself in the loop.
I recommend that you all begin saving perhaps more importantly begin your training as soon as possible (if you haven't already). If you all are looking for a trainer, I would recommend Andy of the Original Team UK, who I believe made it to the final four this past year.
Thanks for the advice C. Urbanus.
I'll try to get them training (and saving) now. As for training with the Original Team UK, they're too far away from us which is a right pain. Though they did give me some handy hints at this years (2005) contest.