I have heard that some players have been contacted by their coach, but we have not, is there a problem?

Not necessarily, sometimes rosters go out when a coach is on vacation.  The coach will contact their team when they are back in town.  As long as you have paid, your child will be placed on a team.  The only time placement is delayed is if you have not paid the registration fee.  Children are placed on a team AFTER payment is received.  If rosters have gone out and you have not been contacted with in a week or two, then contact the director of registration.