I'm pretty sure that the special dinners are for adults only...The reserve and Signiture dinners are about pairing wine with food, and with each course there will be someone explaining the food choice and someone explaining the wine - so they are a cross between a lecture and a dinner- so to speak. The Food and Wine pairings are the same format - last year at The Coral Reef- all 30 of us were seated close together at 4 tables (In other words, you do not get your own table, but are sharing a table with other adults) to facilitate being able to hear the wine and food descriptions- children would have been extremely out of place. Of course, I'm referring to young children- I suppose that a well-behaved teenager might be okay, but they wouldn't be able to drink the wine and would probably be bored- since wine is half of what the dinner is all about. The Party for the Senses is similar to a cocktail party. I would ask Reservations when you call.....
As for calling for ressies, the only number that I've seen is WDW-Dine (407-939-3463); but you might be able to call CRo and get transferred also.