Thanks for writing us Nancy!
Extra Magic Hours (EMH) can be a little bit more confusing at Epcot, since the Future World section of Epcot opens earlier than the World Showcase. In fact the morning EMHs only apply to Future World, so Maelstrom isn't affected at all -- it opens along with World Showcase which opens (almost always) at 11am.
FYI, the attractions that open for morning EMH are:
-Living with the Land
-Mission: SPACE
-Soarin'
-Spaceship Earth
-Test Track
Evening EMH attractions are:
All of the above, plus...
Honey, I Shrunk the Audience (or Captain EO starting July 2, 2010)
Journey Into Imagination With Figment
Mexico - Gran Fiesta Tour Starring The Three Caballeros
Norway-Maelstrom
The American Adventure
For lists of the EMH attractions at the other parks, click
HERE for the full list from Disney.
Hope that helps.