Another mini-guide update

We heard from some attendees that they were having a hard time choosing between DAT209 (WinFS Future Directions: An Overview) and TLN306 (The .NET Language Integreate Query Framework: An Overview) in the Wednesday 1:45pm timeslot.  To make it a little easier on folks, we scheduled a repeat of DAT209 for 5:15PM on Thursday.  Now those who wanted to catch both sessions have a way to make it work.