If you haven't installed XDK on your XBox, you're about 10 steps away from PNet at least. I don't even know what PNet is, but it wouldn't suprise me if you needed an actual membership to that and if you had that, you would have a licensed debug box and wouldn't need to put it on there.
2 important questions would be, which version XBox do you have, and is it hardmodded or softmodded?
Mine is a v1.0 and it's softmodded. If that's the case with you, I may be able to assist, but if it's not, you're going to have to figure that all out on your own. I might be able to point you in the direction of a few threads, but since it took me about 30 hours to get it working on my XBox, you'll understand why people aren't that inclined to help somebody do this. There's too many variables and even if somebody got it working on their XBox in 30 hours, it might take 100 to get it working for somebody else.
Not trying to discourage you in any way. I'm here to help if I can. It's totally worth getting to this point if you're interested. You just might have quite a bit of work getting there.
Good luck
