For the runs in Week 1, you will begin with a brisk 5-minute warm-up walk, then you will alternate 60 seconds of running, with 90 seconds of walking, for a total of 20 minutes.
For tips on what to wear, running technique and staying motivated visit NHS Choices Couch to 5k section at http://www.nhs.uk/Livewell/c25k/Pages/couch-to-5k.aspx and ask for advice and share tips on the forum at http://talk.nhs.uk/forums/67