Loading and modifying problems

I am working on a quiz using the templates form FlashMX… it works rather ok but i have a few questions…
how can i make it work if i load the quiz movie in another movie on level “x” let’s say…?
how can i change the font of the component buttons? or even better, change the “check answer button” with one of my own?
tried to make another simple button and used the correct label, i erased the old button, but it still didn’t work…