Read my post RIGHT ABOVE YOURS! This question is asked constantly in some way, shape or form. Either someone can't find someone, or they post to tell us all that the locations are changed again (when they aren't due to a new update, but people going back to finish old ones).
The next update is on the 18th. So until then, the friends and IF won't be anywhere "new" that they haven't been before. READ old posts about previous Updates, and this and other threads like it and your questions will all be answered.
~Vicks
4th floor, on the top. If you take the elevator, it's the last room right before you go up toward the bathroom, cafeteria and bookstore or whatever that is on the right.
Coco is only going to be there if you haven't already finished this month and last month's updates. I think prior to that she was elsewhere. Go back through previous month's update posts to find out where she was before. Or use the Search feature on this site.
Good luck
~Vicks