Hello!

I dont mean to bother and Im sorry that I have such a "stupid" question! But I have no clue about cameras!

I bought a olympus E-400 a while back and its still in its natural state. It came with a lense and I never bought more (the word on the lense are Zuiko digital 14-42mm 1:3,5 - 5,6)

now we are planing a trip with our daughters to disney world and I want to take awesome pics of that! I mean thats a memory of a lifetime you know ;)
Well I want to enhance the pics of the girls mostly. I really really really want even better pictures! But I have NO idea what I need to look for! Can anyone help me?

Also I would like to take better pictures at night! like of fireworks and such. Maybe someone can help me with that too?

I really really apreciate your help!