You can't,because there is no emulator that can support PS2 games as of yet.Xbox reads different than PS2 also,so we probably won't see this happen for some time.I don't think it will possible for the Xbox,but maybe for the Xbox360.
This question is very common and I really do not know why? The fact is if there isn't a successfull emu for the PC then there will not be one for the Xbox.
Well since XBOX has slight better graphics for the ps2 people probably want to play them on XBOX... i dont know...
slight better graphics whats wrong with u can u see. the xbox using a graphics card. are u sick in you head.
but the graphics are written on the disc for the ps2. no matter how much you upgrade the card or w/e, the graphics won't get any better; it's just like with old pc games. for anyone wondering why, the reason a successful ps2 emulator can't be created for ps2 or xbox is that for the emulator to run, the system running it must be 8-10 times more powerful than the original system. that's a good rule of thumb, anyway.
Holy crap, the dog in your sig. blinks! That kinda freaked me out for a second, I thought I was seeing things, haha!