In reply to Runningforglory:
As others have noted, going straight into a run every day plan is a really bad idea. You need to take a couple of days off to let your body recover. If you can get to do some other races before the marathon, that would be good. Even if it's just a local 10k it'll give you an idea of what to expect on the day. When you're at the race, give yourself plenty of time to park, find the start, go to the loo etc. If the weather is cold, buying a really cheap jumper and tracksuit bottoms to wear and then abandon is a common plan. Some folk wear binbags and the like. Some races pick up the clothes after the start and donate them to charity.
A really good idea in the race is to take regular walk breaks, eg run a mile, walk a minute. Also go slow at the start. Really slow. You can always speed up.
A common running plan is something like this:
Mon - Rest
Tues - short fast run
Weds - Rest
Thurs - slightly longer steady run
Fri & Sat - Rest
Sun - long slow run
I really like Jeff Galloway's site, specifically:
http://www.jeffgalloway.com/training/walk_breaks.html