The other thing too is that most jails record their inmates' phone conversations. If they have you on tape agreeing to help him lie to get on parole, you could get in serious trouble.
Please don't let him trick you into thinking that it will be your fauly if he does stay in jail until December 2009. He is the only one who can put himself in a position to be there; not you, not anyone else. I agree with Marle, he has got to feel the consequences and learn the lessons... if not, history will continue to repeat itself.