I was thinking,

could I use the savestate exploit to switch my xbox back so I can play on XBox Live! with splinter cell using a copy of the game on my xbox's hard drive, instead of an actual copy of the disc?

Umm what do you mean man? Your question isn't really clear. If you mean to play a game off of the hard drive and be able to get on Live then the answer is NO. You cannot.

no, that's not what i meant.

but i figured out the answer with "cold-booting"

thanks for the reply