I think booster seats are fine. You can almost always change diapers on the restroom - it's small, but almost have a changing table. If not, practice changing on your lap! The flight attendant can help you.

Call continental if you have questions - they'll be happy to help. When you get on board - the flight attendants are usually pretty busy getting things settled but the one in the back can probably help you or answer any questions. Don't fret about this - it's going to be just fine.

Actually, I should amend this. Don't bother with Continental or the flight attendant....just put Cheryl on speed dial!