I may have a different version to you guys as mine doesnt talk, it just beeps between walk and run. Where did you get yours from? Mine is the C25K Lite phone app by Guy Hoffman. Week 2 on this one is 5 mins warm up, 90 seconds run (slow jog in my case!) 90 seconds walk, repeating for 20 mins then 5 mins cool down - is it the same as yours?
I need to lose 7 stone to get comfortably into my healthy BMI so I have a very long way to go yet but am just about managing to keep up with it on week 2 albeit i look like a beetroot afterwards.
I am doing it every other day with fitness games (eg Just Dance and Zumba on the Wii and PS3) on the non running days, this gives my battered knees and ankles a bit of time to recover! I find if I try to run every day I just feel exhausted and achey, this way I actually feel more energised every day.
I'm using the NHS podcast. Sounds like its the same tho. I've missed the last 5 days cos both kiddies have been ill hoping to get out again this weekend tho.