Nope! All user accounts and data (including messages) have been migrated to the new server so you can log right in and pick up right where you left off!
Yes, all user accounts have been disabled on the old server as it is no longer intended to be used. Though the old server will continue to remain online, it will be used only by NormanNetworksITS staff for development and testing purposes. This will allow updates to be thoroughly tested before being deployed, which will eliminate the possibility of half-working or entirely broken features.