uber noob questions

[jderm]

1. if a have a moddedxbox, how do i play with the modded halo 2 files?
2. what program should i use to say, make a weapon really powerful?
3. in a lan party, would that change only apply to my xbox?
4. do i run this program off an xbox or pc?
5. is there a way to make powerful weapons only apply to one person?
thx, srry bout teh noobness

[jks]

www.xbox-scene.com