I've done. Finito. I finished Week 9 after 1 false start when my knee gave out in Week 7 and I had to rest for so long I started over. When to see the doc about my knee, she asked me how I did it so told her about Cto5K. She looked at me and said, "Don't you think 5k a bit ambitious, how about 2.5k?" She also told me to lose weight (well, I was 18.5 stone). I'm now doing the 5 and 2 diet and have lost 20lbs since the middle of August.
Anyway restarted Cto5K (had to take a break after Week 6 as at short notice I took someone's place in a 100k in 3 days sponsored walk but managed to restart at Week 6 so I have been through that week 3 times). So now I've just finished my first 3 Laura-less runs, flogging my guts out to do 5.1k in around 37 mins each time. I'll just keep doing this for a while.