Information on registering to hold a 2010 CSTS event and details on the 2010 event window will be made available once the 2010 Global Organizer has been announced. Normally, registration is open from February each year.
However, if you want to start getting prepared, I recommend reading through the 2009 How To Guide that is available here:
https://www.cantstoptheserenity.com/event-registration/There will be a new How To Guide released for 2010, but the 2009 How To Guide should give you a good head start.