Hi CruiseDad. Sorry that you have now experienced my frustrations with the NCL site. I found the information you are looking for on NCL's UK site... click HERE
In case the information in the link goes away, here's an excerpt:
Entered Service: October 2007
Length: 965 feet
Gross Tonnage: 93,558
Guest Capacity: 2,394 (double occupancy)
Crew Capacity: 1,109
Regarding the muster drill and weather... where does your friend live? If he's a New Englander like we are, he and his family will most likely have their coats with them already, or at least clothing that can be layered.
I don't have first-hand experience with the Kids Programs on the newer ships, yet I did tour N. Gem's sister ship N. Jewel and was very impressed with the facilities. Of course, a lot depends upon what the youngster wants to do, but there were computer games, Internet stations, and other age-appropriate activites in the room designated for his age group. Also, he can go with his parents to just about anywhere on the ships -- shows, specialty restaurants (most, if not all of them), excursions, etc.
And to divyeshgopal, welcome to cruise-chat. I look forward to your thoughts when you return.