I just happened to check the board before having to go out. Because of this, I really won't have time to reply more fully than to say I believe some of the tips about photographing another bright object, the sun, will be helpful regarding exposure.
http://www.digicamhelp.com/learn/nature/sun.phpHopefully one of the other mods will stop by tonight and reply prior to your departure.
Incidentally, I've been to a Shuttle blast off and while it is very bright, you sit very far away even if you're in the VIP section. I've shot sunrises that are brighter than the take off.
Have fun, it's a marvelous experience. If time permits, don't forget to check out the Astronaut memorial and eat some astronaut ice cream (I prefer the freeze dried type).
