Where to start? Try this 8 Week Plan from Runner's World!

http://www.runnersworld.com/article/0,7120,s6-238-520--9397-F,00.html

Finding the right training program can be overwhelming when you make the decision to start running.  This program from runner's world is a good guide for beginners, and provides a plan that can be adapted for most schedules.  For people that prefer to start alone rather than in a group, this is a great plan to use.  Remember to start slow and have fun (yes, I said have fun)!