When I started running (3yrs ago) I found the asics online training programme really good.
http://www.myasics.nl/uk/about-us/start_myasics20.php
The programme is one of the few online guides I found that actually takes into account that some people are unfit and absolute non runners when they start. I think my first ever "run" involved 3-5 minutes running and a lot of walking. I used it to get fit enough to do a 5km race for life, lost nearly 3 stone in the process. Then I just kept up the running, I did a few more road and trail races, then got confident enough to join a club, then got lured onto the fells.....