Marathon Man, advice welcome

[Rickypt]

I have just been accepted to run the 2007 Boston Marathon as part of a charity team.

This will be my first marathon. I was a long-distance runner in high school, but that was a very long time ago. I've been doing lots of cardio at the gym this year just to build up endurance. But now I need to get going with the "how to run a marathon with six months of training" program. From all the websites I've researched, it is doable as long as you focus on increasing your mileage on Sunday runs each week until you can run 22 miles or so.

Anyone here have experience with marathons, and particularly with this six month program? I'm kind of nervous.