Hey there David!
Thanks for bringing us this great question!
Mickey's Not-So-Scary Halloween Party is a ghoulish good time. You and your family will have a gas taking part in all of the festivities.
As you enter the park make sure to pick up the special guide map which will give you parade and show times, character meet locations and other spook-tacularly fun things to do.
Make sure to be on Main Street, U.S.A for Mickey's "Boo-To-You" Halloween Parade and Happy HalloWishes fireworks. The parade typically begins at 9:00 p.m. with the fireworks following at 10:00 p.m. However, you will definitely want to consult your guide maps for the specific times on your party date.
I hope this helps with your planning. If you have any more questions about Mickey's Not-So-Scary Halloween party or any other aspect of your time at Walt Disney World please come back and see me.
Wishing you a
*MAGICAL* vacation and a pixie-dusted day!
Sue N., IN