easiest way to train for running is to just run. Find a race, maybe a month or two from now, and just start out small. Run a mile or two a day for a week or two. The next week add a single longer run, maybe 10 more minutes than the rest.
Every 2 weeks add a little bit to your average. Maybe 5 minutes more.
If you want specific workout plans, go to
www.runnersworld.com. Not my favorite publication, but they're alright for beginners.