Buffy007, Beginning2run, Fitfor60, Slow_Rob, IannodaTruffe, flossiflyblow, Irishprincess, Ullyrunner, juicyju, Cheshiregal, poppypug, caj62 and frannyfran for all your words of encouragement, humour, support (and the occasional threat). I did it!! I ran for 20 minutes and didn't have a heart attack, didn't cry uncontrollably, didn't even get stitch!
It just shows that the programme must be well designed to get a couch potato like me to run for 20 minutes
Many thanks again for all the support. I wonder how much harder it would have been if I hadn't joined this forum?